( function ( $, undefined ) {
	/**
	 *  acf
	 *
	 *  description
	 *
	 *  @date	14/12/17
	 *  @since	ACF 5.6.5
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	// The global acf object
	var acf = {};

	// Set as a browser global
	window.acf = acf;

	/** @var object Data sent from PHP */
	acf.data = {};

	/**
	 *  get
	 *
	 *  Gets a specific data value
	 *
	 *  @date	14/12/17
	 *  @since	ACF 5.6.5
	 *
	 *  @param	string name
	 *  @return	mixed
	 */

	acf.get = function ( name ) {
		return this.data[ name ] || null;
	};

	/**
	 *  has
	 *
	 *  Returns `true` if the data exists and is not null
	 *
	 *  @date	14/12/17
	 *  @since	ACF 5.6.5
	 *
	 *  @param	string name
	 *  @return	boolean
	 */

	acf.has = function ( name ) {
		return this.get( name ) !== null;
	};

	/**
	 *  set
	 *
	 *  Sets a specific data value
	 *
	 *  @date	14/12/17
	 *  @since	ACF 5.6.5
	 *
	 *  @param	string name
	 *  @param	mixed value
	 *  @return	this
	 */

	acf.set = function ( name, value ) {
		this.data[ name ] = value;
		return this;
	};

	/**
	 *  uniqueId
	 *
	 *  Returns a unique ID
	 *
	 *  @date	9/11/17
	 *  @since	ACF 5.6.3
	 *
	 *  @param	string prefix Optional prefix.
	 *  @return	string
	 */

	var idCounter = 0;
	acf.uniqueId = function ( prefix ) {
		var id = ++idCounter + '';
		return prefix ? prefix + id : id;
	};

	/**
	 *  acf.uniqueArray
	 *
	 *  Returns a new array with only unique values
	 *  Credit: https://stackoverflow.com/questions/1960473/get-all-unique-values-in-an-array-remove-duplicates
	 *
	 *  @date	23/3/18
	 *  @since	ACF 5.6.9
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	acf.uniqueArray = function ( array ) {
		function onlyUnique( value, index, self ) {
			return self.indexOf( value ) === index;
		}
		return array.filter( onlyUnique );
	};

	/**
	 *  uniqid
	 *
	 *  Returns a unique ID (PHP version)
	 *
	 *  @date	9/11/17
	 *  @since	ACF 5.6.3
	 *  @source	http://locutus.io/php/misc/uniqid/
	 *
	 *  @param	string prefix Optional prefix.
	 *  @return	string
	 */

	var uniqidSeed = '';
	acf.uniqid = function ( prefix, moreEntropy ) {
		//  discuss at: http://locutus.io/php/uniqid/
		// original by: Kevin van Zonneveld (http://kvz.io)
		//  revised by: Kankrelune (http://www.webfaktory.info/)
		//      note 1: Uses an internal counter (in locutus global) to avoid collision
		//   example 1: var $id = uniqid()
		//   example 1: var $result = $id.length === 13
		//   returns 1: true
		//   example 2: var $id = uniqid('foo')
		//   example 2: var $result = $id.length === (13 + 'foo'.length)
		//   returns 2: true
		//   example 3: var $id = uniqid('bar', true)
		//   example 3: var $result = $id.length === (23 + 'bar'.length)
		//   returns 3: true
		if ( typeof prefix === 'undefined' ) {
			prefix = '';
		}

		var retId;
		var formatSeed = function ( seed, reqWidth ) {
			seed = parseInt( seed, 10 ).toString( 16 ); // to hex str
			if ( reqWidth < seed.length ) {
				// so long we split
				return seed.slice( seed.length - reqWidth );
			}
			if ( reqWidth > seed.length ) {
				// so short we pad
				return Array( 1 + ( reqWidth - seed.length ) ).join( '0' ) + seed;
			}
			return seed;
		};

		if ( ! uniqidSeed ) {
			// init seed with big random int
			uniqidSeed = Math.floor( Math.random() * 0x75bcd15 );
		}
		uniqidSeed++;

		retId = prefix; // start with prefix, add current milliseconds hex string
		retId += formatSeed( parseInt( new Date().getTime() / 1000, 10 ), 8 );
		retId += formatSeed( uniqidSeed, 5 ); // add seed hex string
		if ( moreEntropy ) {
			// for more entropy we add a float lower to 10
			retId += ( Math.random() * 10 ).toFixed( 8 ).toString();
		}

		return retId;
	};

	/**
	 *  strReplace
	 *
	 *  Performs a string replace
	 *
	 *  @date	14/12/17
	 *  @since	ACF 5.6.5
	 *
	 *  @param	string search
	 *  @param	string replace
	 *  @param	string subject
	 *  @return	string
	 */

	acf.strReplace = function ( search, replace, subject ) {
		return subject.split( search ).join( replace );
	};

	/**
	 *  strCamelCase
	 *
	 *  Converts a string into camelCase
	 *  Thanks to https://stackoverflow.com/questions/2970525/converting-any-string-into-camel-case
	 *
	 *  @date	14/12/17
	 *  @since	ACF 5.6.5
	 *
	 *  @param	string str
	 *  @return	string
	 */

	acf.strCamelCase = function ( str ) {
		var matches = str.match( /([a-zA-Z0-9]+)/g );
		return matches
			? matches
					.map( function ( s, i ) {
						var c = s.charAt( 0 );
						return ( i === 0 ? c.toLowerCase() : c.toUpperCase() ) + s.slice( 1 );
					} )
					.join( '' )
			: '';
	};

	/**
	 *  strPascalCase
	 *
	 *  Converts a string into PascalCase
	 *  Thanks to https://stackoverflow.com/questions/1026069/how-do-i-make-the-first-letter-of-a-string-uppercase-in-javascript
	 *
	 *  @date	14/12/17
	 *  @since	ACF 5.6.5
	 *
	 *  @param	string str
	 *  @return	string
	 */

	acf.strPascalCase = function ( str ) {
		var camel = acf.strCamelCase( str );
		return camel.charAt( 0 ).toUpperCase() + camel.slice( 1 );
	};

	/**
	 *  acf.strSlugify
	 *
	 *  Converts a string into a HTML class friendly slug
	 *
	 *  @date	21/3/18
	 *  @since	ACF 5.6.9
	 *
	 *  @param	string str
	 *  @return	string
	 */

	acf.strSlugify = function ( str ) {
		return acf.strReplace( '_', '-', str.toLowerCase() );
	};

	acf.strSanitize = function ( str, toLowerCase = true ) {
		// chars (https://jsperf.com/replace-foreign-characters)
		var map = {
			À: 'A',
			Á: 'A',
			Â: 'A',
			Ã: 'A',
			Ä: 'A',
			Å: 'A',
			Æ: 'AE',
			Ç: 'C',
			È: 'E',
			É: 'E',
			Ê: 'E',
			Ë: 'E',
			Ì: 'I',
			Í: 'I',
			Î: 'I',
			Ï: 'I',
			Ð: 'D',
			Ñ: 'N',
			Ò: 'O',
			Ó: 'O',
			Ô: 'O',
			Õ: 'O',
			Ö: 'O',
			Ø: 'O',
			Ù: 'U',
			Ú: 'U',
			Û: 'U',
			Ü: 'U',
			Ý: 'Y',
			ß: 's',
			à: 'a',
			á: 'a',
			â: 'a',
			ã: 'a',
			ä: 'a',
			å: 'a',
			æ: 'ae',
			ç: 'c',
			è: 'e',
			é: 'e',
			ê: 'e',
			ë: 'e',
			ì: 'i',
			í: 'i',
			î: 'i',
			ï: 'i',
			ñ: 'n',
			ò: 'o',
			ó: 'o',
			ô: 'o',
			õ: 'o',
			ö: 'o',
			ø: 'o',
			ù: 'u',
			ú: 'u',
			û: 'u',
			ü: 'u',
			ý: 'y',
			ÿ: 'y',
			Ā: 'A',
			ā: 'a',
			Ă: 'A',
			ă: 'a',
			Ą: 'A',
			ą: 'a',
			Ć: 'C',
			ć: 'c',
			Ĉ: 'C',
			ĉ: 'c',
			Ċ: 'C',
			ċ: 'c',
			Č: 'C',
			č: 'c',
			Ď: 'D',
			ď: 'd',
			Đ: 'D',
			đ: 'd',
			Ē: 'E',
			ē: 'e',
			Ĕ: 'E',
			ĕ: 'e',
			Ė: 'E',
			ė: 'e',
			Ę: 'E',
			ę: 'e',
			Ě: 'E',
			ě: 'e',
			Ĝ: 'G',
			ĝ: 'g',
			Ğ: 'G',
			ğ: 'g',
			Ġ: 'G',
			ġ: 'g',
			Ģ: 'G',
			ģ: 'g',
			Ĥ: 'H',
			ĥ: 'h',
			Ħ: 'H',
			ħ: 'h',
			Ĩ: 'I',
			ĩ: 'i',
			Ī: 'I',
			ī: 'i',
			Ĭ: 'I',
			ĭ: 'i',
			Į: 'I',
			į: 'i',
			İ: 'I',
			ı: 'i',
			Ĳ: 'IJ',
			ĳ: 'ij',
			Ĵ: 'J',
			ĵ: 'j',
			Ķ: 'K',
			ķ: 'k',
			Ĺ: 'L',
			ĺ: 'l',
			Ļ: 'L',
			ļ: 'l',
			Ľ: 'L',
			ľ: 'l',
			Ŀ: 'L',
			ŀ: 'l',
			Ł: 'l',
			ł: 'l',
			Ń: 'N',
			ń: 'n',
			Ņ: 'N',
			ņ: 'n',
			Ň: 'N',
			ň: 'n',
			ŉ: 'n',
			Ō: 'O',
			ō: 'o',
			Ŏ: 'O',
			ŏ: 'o',
			Ő: 'O',
			ő: 'o',
			Œ: 'OE',
			œ: 'oe',
			Ŕ: 'R',
			ŕ: 'r',
			Ŗ: 'R',
			ŗ: 'r',
			Ř: 'R',
			ř: 'r',
			Ś: 'S',
			ś: 's',
			Ŝ: 'S',
			ŝ: 's',
			Ş: 'S',
			ş: 's',
			Š: 'S',
			š: 's',
			Ţ: 'T',
			ţ: 't',
			Ť: 'T',
			ť: 't',
			Ŧ: 'T',
			ŧ: 't',
			Ũ: 'U',
			ũ: 'u',
			Ū: 'U',
			ū: 'u',
			Ŭ: 'U',
			ŭ: 'u',
			Ů: 'U',
			ů: 'u',
			Ű: 'U',
			ű: 'u',
			Ų: 'U',
			ų: 'u',
			Ŵ: 'W',
			ŵ: 'w',
			Ŷ: 'Y',
			ŷ: 'y',
			Ÿ: 'Y',
			Ź: 'Z',
			ź: 'z',
			Ż: 'Z',
			ż: 'z',
			Ž: 'Z',
			ž: 'z',
			ſ: 's',
			ƒ: 'f',
			Ơ: 'O',
			ơ: 'o',
			Ư: 'U',
			ư: 'u',
			Ǎ: 'A',
			ǎ: 'a',
			Ǐ: 'I',
			ǐ: 'i',
			Ǒ: 'O',
			ǒ: 'o',
			Ǔ: 'U',
			ǔ: 'u',
			Ǖ: 'U',
			ǖ: 'u',
			Ǘ: 'U',
			ǘ: 'u',
			Ǚ: 'U',
			ǚ: 'u',
			Ǜ: 'U',
			ǜ: 'u',
			Ǻ: 'A',
			ǻ: 'a',
			Ǽ: 'AE',
			ǽ: 'ae',
			Ǿ: 'O',
			ǿ: 'o',

			// extra
			' ': '_',
			"'": '',
			'?': '',
			'/': '',
			'\\': '',
			'.': '',
			',': '',
			'`': '',
			'>': '',
			'<': '',
			'"': '',
			'[': '',
			']': '',
			'|': '',
			'{': '',
			'}': '',
			'(': '',
			')': '',
		};

		// vars
		var nonWord = /\W/g;
		var mapping = function ( c ) {
			return map[ c ] !== undefined ? map[ c ] : c;
		};

		// replace
		str = str.replace( nonWord, mapping );

		// lowercase
		if ( toLowerCase ) {
			str = str.toLowerCase();
		}

		// return
		return str;
	};

	/**
	 *  acf.strMatch
	 *
	 *  Returns the number of characters that match between two strings
	 *
	 *  @date	1/2/18
	 *  @since	ACF 5.6.5
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	acf.strMatch = function ( s1, s2 ) {
		// vars
		var val = 0;
		var min = Math.min( s1.length, s2.length );

		// loop
		for ( var i = 0; i < min; i++ ) {
			if ( s1[ i ] !== s2[ i ] ) {
				break;
			}
			val++;
		}

		// return
		return val;
	};

	/**
	 * Escapes HTML entities from a string.
	 *
	 * @date	08/06/2020
	 * @since	ACF 5.9.0
	 *
	 * @param	string string The input string.
	 * @return	string
	 */
	acf.strEscape = function ( string ) {
		var htmlEscapes = {
			'&': '&amp;',
			'<': '&lt;',
			'>': '&gt;',
			'"': '&quot;',
			"'": '&#39;',
		};
		return ( '' + string ).replace( /[&<>"']/g, function ( chr ) {
			return htmlEscapes[ chr ];
		} );
	};

	// Tests.
	//console.log( acf.strEscape('Test 1') );
	//console.log( acf.strEscape('Test & 1') );
	//console.log( acf.strEscape('Test\'s &amp; 1') );
	//console.log( acf.strEscape('<script>js</script>') );

	/**
	 * Unescapes HTML entities from a string.
	 *
	 * @date	08/06/2020
	 * @since	ACF 5.9.0
	 *
	 * @param	string string The input string.
	 * @return	string
	 */
	acf.strUnescape = function ( string ) {
		var htmlUnescapes = {
			'&amp;': '&',
			'&lt;': '<',
			'&gt;': '>',
			'&quot;': '"',
			'&#39;': "'",
		};
		return ( '' + string ).replace( /&amp;|&lt;|&gt;|&quot;|&#39;/g, function ( entity ) {
			return htmlUnescapes[ entity ];
		} );
	};

	// Tests.
	//console.log( acf.strUnescape( acf.strEscape('Test 1') ) );
	//console.log( acf.strUnescape( acf.strEscape('Test & 1') ) );
	//console.log( acf.strUnescape( acf.strEscape('Test\'s &amp; 1') ) );
	//console.log( acf.strUnescape( acf.strEscape('<script>js</script>') ) );

	/**
	 * Escapes HTML entities from a string.
	 *
	 * @date	08/06/2020
	 * @since	ACF 5.9.0
	 *
	 * @param	string string The input string.
	 * @return	string
	 */
	acf.escAttr = acf.strEscape;

	/**
	 * Encodes <script> tags for safe HTML output.
	 *
	 * @date	08/06/2020
	 * @since	ACF 5.9.0
	 *
	 * @param	string string The input string.
	 * @return	string
	 */
	acf.escHtml = function ( string ) {
		return ( '' + string ).replace( /<script|<\/script/g, function ( html ) {
			return acf.strEscape( html );
		} );
	};

	// Tests.
	//console.log( acf.escHtml('<script>js</script>') );
	//console.log( acf.escHtml( acf.strEscape('<script>js</script>') ) );
	//console.log( acf.escHtml( '<script>js1</script><script>js2</script>' ) );

	/**
	 * Encode a string potentially containing HTML into it's HTML entities equivalent.
	 *
	 * @since ACF 6.3.6
	 *
	 * @param {string} string String to encode.
	 * @return {string} The encoded string
	 */
	acf.encode = function ( string ) {
		return $( '<textarea/>' ).text( string ).html();
	};

	/**
	 * Decode a HTML encoded string into it's original form.
	 *
	 * @since ACF 5.6.5
	 *
	 * @param {string} string String to encode.
	 * @return {string} The encoded string
	 */
	acf.decode = function ( string ) {
		return $( '<textarea/>' ).html( string ).text();
	};

	/**
	 *  parseArgs
	 *
	 *  Merges together defaults and args much like the WP wp_parse_args function
	 *
	 *  @date	14/12/17
	 *  @since	ACF 5.6.5
	 *
	 *  @param	object args
	 *  @param	object defaults
	 *  @return	object
	 */

	acf.parseArgs = function ( args, defaults ) {
		if ( typeof args !== 'object' ) args = {};
		if ( typeof defaults !== 'object' ) defaults = {};
		return $.extend( {}, defaults, args );
	};

	/**
	 *  __
	 *
	 *  Retrieve the translation of $text.
	 *
	 *  @date	16/4/18
	 *  @since	ACF 5.6.9
	 *
	 *  @param	string text Text to translate.
	 *  @return	string Translated text.
	 */

	if ( window.acfL10n == undefined ) {
		acfL10n = {};
	}

	acf.__ = function ( text ) {
		return acfL10n[ text ] || text;
	};

	/**
	 *  _x
	 *
	 *  Retrieve translated string with gettext context.
	 *
	 *  @date	16/4/18
	 *  @since	ACF 5.6.9
	 *
	 *  @param	string text Text to translate.
	 *  @param	string context Context information for the translators.
	 *  @return	string Translated text.
	 */

	acf._x = function ( text, context ) {
		return acfL10n[ text + '.' + context ] || acfL10n[ text ] || text;
	};

	/**
	 *  _n
	 *
	 *  Retrieve the plural or single form based on the amount.
	 *
	 *  @date	16/4/18
	 *  @since	ACF 5.6.9
	 *
	 *  @param	string single Single text to translate.
	 *  @param	string plural Plural text to translate.
	 *  @param	int number The number to compare against.
	 *  @return	string Translated text.
	 */

	acf._n = function ( single, plural, number ) {
		if ( number == 1 ) {
			return acf.__( single );
		} else {
			return acf.__( plural );
		}
	};

	acf.isArray = function ( a ) {
		return Array.isArray( a );
	};

	acf.isObject = function ( a ) {
		return typeof a === 'object';
	};

	/**
	 *  serialize
	 *
	 *  description
	 *
	 *  @date	24/12/17
	 *  @since	ACF 5.6.5
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	var buildObject = function ( obj, name, value ) {
		// replace [] with placeholder
		name = name.replace( '[]', '[%%index%%]' );

		// vars
		var keys = name.match( /([^\[\]])+/g );
		if ( ! keys ) return;
		var length = keys.length;
		var ref = obj;

		// loop
		for ( var i = 0; i < length; i++ ) {
			// vars
			var key = String( keys[ i ] );

			// value
			if ( i == length - 1 ) {
				// %%index%%
				if ( key === '%%index%%' ) {
					ref.push( value );

					// default
				} else {
					ref[ key ] = value;
				}

				// path
			} else {
				// array
				if ( keys[ i + 1 ] === '%%index%%' ) {
					if ( ! acf.isArray( ref[ key ] ) ) {
						ref[ key ] = [];
					}

					// object
				} else {
					if ( ! acf.isObject( ref[ key ] ) ) {
						ref[ key ] = {};
					}
				}

				// crawl
				ref = ref[ key ];
			}
		}
	};

	acf.serialize = function ( $el, prefix ) {
		// vars
		var obj = {};
		var inputs = acf.serializeArray( $el );

		// prefix
		if ( prefix !== undefined ) {
			// filter and modify
			inputs = inputs
				.filter( function ( item ) {
					return item.name.indexOf( prefix ) === 0;
				} )
				.map( function ( item ) {
					item.name = item.name.slice( prefix.length );
					return item;
				} );
		}

		// loop
		for ( var i = 0; i < inputs.length; i++ ) {
			buildObject( obj, inputs[ i ].name, inputs[ i ].value );
		}

		// return
		return obj;
	};

	/**
	 *  acf.serializeArray
	 *
	 *  Similar to $.serializeArray() but works with a parent wrapping element.
	 *
	 *  @date	19/8/18
	 *  @since	ACF 5.7.3
	 *
	 *  @param	jQuery $el The element or form to serialize.
	 *  @return	array
	 */

	acf.serializeArray = function ( $el ) {
		return $el.find( 'select, textarea, input' ).serializeArray();
	};

	/**
	 *  acf.serializeForAjax
	 *
	 *  Returns an object containing name => value data ready to be encoded for Ajax.
	 *
	 *  @date	17/12/18
	 *  @since	ACF 5.8.0
	 *
	 *  @param	jQUery $el The element or form to serialize.
	 *  @return	object
	 */
	acf.serializeForAjax = function ( $el ) {
		// vars
		var data = {};
		var index = {};

		// Serialize inputs.
		var inputs = acf.serializeArray( $el );

		// Loop over inputs and build data.
		inputs.map( function ( item ) {
			// Append to array.
			if ( item.name.slice( -2 ) === '[]' ) {
				data[ item.name ] = data[ item.name ] || [];
				data[ item.name ].push( item.value );
				// Append
			} else {
				data[ item.name ] = item.value;
			}
		} );

		// return
		return data;
	};

	/**
	 *  addAction
	 *
	 *  Wrapper for acf.hooks.addAction
	 *
	 *  @date	14/12/17
	 *  @since	ACF 5.6.5
	 *
	 *  @param	n/a
	 *  @return	this
	 */

	/*
	var prefixAction = function( action ){
		return 'acf_' + action;
	}
*/

	acf.addAction = function ( action, callback, priority, context ) {
		//action = prefixAction(action);
		acf.hooks.addAction.apply( this, arguments );
		return this;
	};

	/**
	 *  removeAction
	 *
	 *  Wrapper for acf.hooks.removeAction
	 *
	 *  @date	14/12/17
	 *  @since	ACF 5.6.5
	 *
	 *  @param	n/a
	 *  @return	this
	 */

	acf.removeAction = function ( action, callback ) {
		//action = prefixAction(action);
		acf.hooks.removeAction.apply( this, arguments );
		return this;
	};

	/**
	 *  doAction
	 *
	 *  Wrapper for acf.hooks.doAction
	 *
	 *  @date	14/12/17
	 *  @since	ACF 5.6.5
	 *
	 *  @param	n/a
	 *  @return	this
	 */

	var actionHistory = {};
	//var currentAction = false;
	acf.doAction = function ( action ) {
		//action = prefixAction(action);
		//currentAction = action;
		actionHistory[ action ] = 1;
		acf.hooks.doAction.apply( this, arguments );
		actionHistory[ action ] = 0;
		return this;
	};

	/**
	 *  doingAction
	 *
	 *  Return true if doing action
	 *
	 *  @date	14/12/17
	 *  @since	ACF 5.6.5
	 *
	 *  @param	n/a
	 *  @return	this
	 */

	acf.doingAction = function ( action ) {
		//action = prefixAction(action);
		return actionHistory[ action ] === 1;
	};

	/**
	 *  didAction
	 *
	 *  Wrapper for acf.hooks.doAction
	 *
	 *  @date	14/12/17
	 *  @since	ACF 5.6.5
	 *
	 *  @param	n/a
	 *  @return	this
	 */

	acf.didAction = function ( action ) {
		//action = prefixAction(action);
		return actionHistory[ action ] !== undefined;
	};

	/**
	 *  currentAction
	 *
	 *  Wrapper for acf.hooks.doAction
	 *
	 *  @date	14/12/17
	 *  @since	ACF 5.6.5
	 *
	 *  @param	n/a
	 *  @return	this
	 */

	acf.currentAction = function () {
		for ( var k in actionHistory ) {
			if ( actionHistory[ k ] ) {
				return k;
			}
		}
		return false;
	};

	/**
	 *  addFilter
	 *
	 *  Wrapper for acf.hooks.addFilter
	 *
	 *  @date	14/12/17
	 *  @since	ACF 5.6.5
	 *
	 *  @param	n/a
	 *  @return	this
	 */

	acf.addFilter = function ( action ) {
		//action = prefixAction(action);
		acf.hooks.addFilter.apply( this, arguments );
		return this;
	};

	/**
	 *  removeFilter
	 *
	 *  Wrapper for acf.hooks.removeFilter
	 *
	 *  @date	14/12/17
	 *  @since	ACF 5.6.5
	 *
	 *  @param	n/a
	 *  @return	this
	 */

	acf.removeFilter = function ( action ) {
		//action = prefixAction(action);
		acf.hooks.removeFilter.apply( this, arguments );
		return this;
	};

	/**
	 *  applyFilters
	 *
	 *  Wrapper for acf.hooks.applyFilters
	 *
	 *  @date	14/12/17
	 *  @since	ACF 5.6.5
	 *
	 *  @param	n/a
	 *  @return	this
	 */

	acf.applyFilters = function ( action ) {
		//action = prefixAction(action);
		return acf.hooks.applyFilters.apply( this, arguments );
	};

	/**
	 *  getArgs
	 *
	 *  description
	 *
	 *  @date	15/12/17
	 *  @since	ACF 5.6.5
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	acf.arrayArgs = function ( args ) {
		return Array.prototype.slice.call( args );
	};

	/**
	 *  extendArgs
	 *
	 *  description
	 *
	 *  @date	15/12/17
	 *  @since	ACF 5.6.5
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	/*
	acf.extendArgs = function( ){
		var args = Array.prototype.slice.call( arguments );
		var realArgs = args.shift();
			
		Array.prototype.push.call(arguments, 'bar')
		return Array.prototype.push.apply( args, arguments );
	};
*/

	// Preferences
	// - use try/catch to avoid JS error if cookies are disabled on front-end form
	try {
		var preferences = JSON.parse( localStorage.getItem( 'acf' ) ) || {};
	} catch ( e ) {
		var preferences = {};
	}

	/**
	 *  getPreferenceName
	 *
	 *  Gets the true preference name.
	 *  Converts "this.thing" to "thing-123" if editing post 123.
	 *
	 *  @date	11/11/17
	 *  @since	ACF 5.6.5
	 *
	 *  @param	string name
	 *  @return	string
	 */

	var getPreferenceName = function ( name ) {
		if ( name.substr( 0, 5 ) === 'this.' ) {
			name = name.substr( 5 ) + '-' + acf.get( 'post_id' );
		}
		return name;
	};

	/**
	 *  acf.getPreference
	 *
	 *  Gets a preference setting or null if not set.
	 *
	 *  @date	11/11/17
	 *  @since	ACF 5.6.5
	 *
	 *  @param	string name
	 *  @return	mixed
	 */

	acf.getPreference = function ( name ) {
		name = getPreferenceName( name );
		return preferences[ name ] || null;
	};

	/**
	 *  acf.setPreference
	 *
	 *  Sets a preference setting.
	 *
	 *  @date	11/11/17
	 *  @since	ACF 5.6.5
	 *
	 *  @param	string name
	 *  @param	mixed value
	 *  @return	n/a
	 */

	acf.setPreference = function ( name, value ) {
		name = getPreferenceName( name );
		if ( value === null ) {
			delete preferences[ name ];
		} else {
			preferences[ name ] = value;
		}
		localStorage.setItem( 'acf', JSON.stringify( preferences ) );
	};

	/**
	 *  acf.removePreference
	 *
	 *  Removes a preference setting.
	 *
	 *  @date	11/11/17
	 *  @since	ACF 5.6.5
	 *
	 *  @param	string name
	 *  @return	n/a
	 */

	acf.removePreference = function ( name ) {
		acf.setPreference( name, null );
	};

	/**
	 *  remove
	 *
	 *  Removes an element with fade effect
	 *
	 *  @date	1/1/18
	 *  @since	ACF 5.6.5
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	acf.remove = function ( props ) {
		// allow jQuery
		if ( props instanceof jQuery ) {
			props = {
				target: props,
			};
		}

		// defaults
		props = acf.parseArgs( props, {
			target: false,
			endHeight: 0,
			complete: function () {},
		} );

		// action
		acf.doAction( 'remove', props.target );

		// tr
		if ( props.target.is( 'tr' ) ) {
			removeTr( props );

			// div
		} else {
			removeDiv( props );
		}
	};

	/**
	 *  removeDiv
	 *
	 *  description
	 *
	 *  @date	16/2/18
	 *  @since	ACF 5.6.9
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	var removeDiv = function ( props ) {
		// vars
		var $el = props.target;
		var height = $el.height();
		var width = $el.width();
		var margin = $el.css( 'margin' );
		var outerHeight = $el.outerHeight( true );
		var style = $el.attr( 'style' ) + ''; // needed to copy

		// wrap
		$el.wrap( '<div class="acf-temp-remove" style="height:' + outerHeight + 'px"></div>' );
		var $wrap = $el.parent();

		// set pos
		$el.css( {
			height: height,
			width: width,
			margin: margin,
			position: 'absolute',
		} );

		// fade wrap
		setTimeout( function () {
			$wrap.css( {
				opacity: 0,
				height: props.endHeight,
			} );
		}, 50 );

		// remove
		setTimeout( function () {
			$el.attr( 'style', style );
			$wrap.remove();
			props.complete();
		}, 301 );
	};

	/**
	 *  removeTr
	 *
	 *  description
	 *
	 *  @date	16/2/18
	 *  @since	ACF 5.6.9
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	var removeTr = function ( props ) {
		// vars
		var $tr = props.target;
		var height = $tr.height();
		var children = $tr.children().length;

		// create dummy td
		var $td = $(
			'<td class="acf-temp-remove" style="padding:0; height:' + height + 'px" colspan="' + children + '"></td>'
		);

		// fade away tr
		$tr.addClass( 'acf-remove-element' );

		// update HTML after fade animation
		setTimeout( function () {
			$tr.html( $td );
		}, 251 );

		// allow .acf-temp-remove to exist before changing CSS
		setTimeout( function () {
			// remove class
			$tr.removeClass( 'acf-remove-element' );

			// collapse
			$td.css( {
				height: props.endHeight,
			} );
		}, 300 );

		// remove
		setTimeout( function () {
			$tr.remove();
			props.complete();
		}, 451 );
	};

	/**
	 *  duplicate
	 *
	 *  description
	 *
	 *  @date	3/1/18
	 *  @since	ACF 5.6.5
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	acf.duplicate = function ( args ) {
		// allow jQuery
		if ( args instanceof jQuery ) {
			args = {
				target: args,
			};
		}

		// defaults
		args = acf.parseArgs( args, {
			target: false,
			search: '',
			replace: '',
			rename: true,
			before: function ( $el ) {},
			after: function ( $el, $el2 ) {},
			append: function ( $el, $el2 ) {
				$el.after( $el2 );
			},
		} );

		// compatibility
		args.target = args.target || args.$el;

		// vars
		var $el = args.target;

		// search
		args.search = args.search || $el.attr( 'data-id' );
		args.replace = args.replace || acf.uniqid();

		// before
		// - allow acf to modify DOM
		// - fixes bug where select field option is not selected
		args.before( $el );
		acf.doAction( 'before_duplicate', $el );

		// clone
		var $el2 = $el.clone();

		// rename
		if ( args.rename ) {
			acf.rename( {
				target: $el2,
				search: args.search,
				replace: args.replace,
				replacer: typeof args.rename === 'function' ? args.rename : null,
			} );
		}

		// remove classes
		$el2.removeClass( 'acf-clone' );
		$el2.find( '.ui-sortable' ).removeClass( 'ui-sortable' );

		// remove any initialised select2s prevent the duplicated object stealing the previous select2.
		$el2.find( '[data-select2-id]' ).removeAttr( 'data-select2-id' );
		$el2.find( '.select2' ).remove();

		// subfield select2 renames happen after init and contain a duplicated ID. force change those IDs to prevent this.
		$el2.find( '.acf-is-subfields select[data-ui="1"]' ).each( function () {
			$( this ).prop(
				'id',
				$( this )
					.prop( 'id' )
					.replace( 'acf_fields', acf.uniqid( 'duplicated_' ) + '_acf_fields' )
			);
		} );

		// remove tab wrapper to ensure proper init
		$el2.find( '.acf-field-settings > .acf-tab-wrap' ).remove();

		// after
		// - allow acf to modify DOM
		args.after( $el, $el2 );
		acf.doAction( 'after_duplicate', $el, $el2 );

		// append
		args.append( $el, $el2 );

		/**
		 * Fires after an element has been duplicated and appended to the DOM.
		 *
		 * @date	30/10/19
		 * @since	ACF 5.8.7
		 *
		 * @param	jQuery $el The original element.
		 * @param	jQuery $el2 The duplicated element.
		 */
		acf.doAction( 'duplicate', $el, $el2 );

		// append
		acf.doAction( 'append', $el2 );

		// return
		return $el2;
	};

	/**
	 *  rename
	 *
	 *  description
	 *
	 *  @date	7/1/18
	 *  @since	ACF 5.6.5
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	acf.rename = function ( args ) {
		// Allow jQuery param.
		if ( args instanceof jQuery ) {
			args = {
				target: args,
			};
		}

		// Apply default args.
		args = acf.parseArgs( args, {
			target: false,
			destructive: false,
			search: '',
			replace: '',
			replacer: null,
		} );

		// Extract args.
		var $el = args.target;

		// Provide backup for empty args.
		if ( ! args.search ) {
			args.search = $el.attr( 'data-id' );
		}
		if ( ! args.replace ) {
			args.replace = acf.uniqid( 'acf' );
		}
		if ( ! args.replacer ) {
			args.replacer = function ( name, value, search, replace ) {
				return value.replace( search, replace );
			};
		}

		// Callback function for jQuery replacing.
		var withReplacer = function ( name ) {
			return function ( i, value ) {
				return args.replacer( name, value, args.search, args.replace );
			};
		};

		// Destructive Replace.
		if ( args.destructive ) {
			var html = acf.strReplace( args.search, args.replace, $el.outerHTML() );
			$el.replaceWith( html );

			// Standard Replace.
		} else {
			$el.attr( 'data-id', args.replace );
			$el.find( '[id*="' + args.search + '"]' ).attr( 'id', withReplacer( 'id' ) );
			$el.find( '[for*="' + args.search + '"]' ).attr( 'for', withReplacer( 'for' ) );
			$el.find( '[name*="' + args.search + '"]' ).attr( 'name', withReplacer( 'name' ) );
		}

		// return
		return $el;
	};

	/**
	 * Prepares AJAX data prior to being sent.
	 *
	 * @since ACF 5.6.5
	 *
	 * @param Object  data             The data to prepare
	 * @param boolean use_global_nonce Should we ignore any nonce provided in the data object and force ACF's global nonce for this request
	 * @return Object The prepared data.
	 */
	acf.prepareForAjax = function ( data, use_global_nonce = false ) {
		// Set a default nonce if we don't have one already.
		if ( use_global_nonce || 'undefined' === typeof data.nonce ) {
			data.nonce = acf.get( 'nonce' );
		}

		data.post_id = acf.get( 'post_id' );

		if ( acf.has( 'language' ) ) {
			data.lang = acf.get( 'language' );
		}

		// Filter for 3rd party customization.
		data = acf.applyFilters( 'prepare_for_ajax', data );

		return data;
	};

	/**
	 *  acf.startButtonLoading
	 *
	 *  description
	 *
	 *  @date	5/1/18
	 *  @since	ACF 5.6.5
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	acf.startButtonLoading = function ( $el ) {
		$el.prop( 'disabled', true );
		$el.after( ' <i class="acf-loading"></i>' );
	};

	acf.stopButtonLoading = function ( $el ) {
		$el.prop( 'disabled', false );
		$el.next( '.acf-loading' ).remove();
	};

	/**
	 *  acf.showLoading
	 *
	 *  description
	 *
	 *  @date	12/1/18
	 *  @since	ACF 5.6.5
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	acf.showLoading = function ( $el ) {
		$el.append( '<div class="acf-loading-overlay"><i class="acf-loading"></i></div>' );
	};

	acf.hideLoading = function ( $el ) {
		$el.children( '.acf-loading-overlay' ).remove();
	};

	/**
	 *  acf.updateUserSetting
	 *
	 *  description
	 *
	 *  @date	5/1/18
	 *  @since	ACF 5.6.5
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	acf.updateUserSetting = function ( name, value ) {
		var ajaxData = {
			action: 'acf/ajax/user_setting',
			name: name,
			value: value,
		};

		$.ajax( {
			url: acf.get( 'ajaxurl' ),
			data: acf.prepareForAjax( ajaxData ),
			type: 'post',
			dataType: 'html',
		} );
	};

	/**
	 *  acf.val
	 *
	 *  description
	 *
	 *  @date	8/1/18
	 *  @since	ACF 5.6.5
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	acf.val = function ( $input, value, silent ) {
		// vars
		var prevValue = $input.val();

		// bail if no change
		if ( value === prevValue ) {
			return false;
		}

		// update value
		$input.val( value );

		// prevent select elements displaying blank value if option doesn't exist
		if ( $input.is( 'select' ) && $input.val() === null ) {
			$input.val( prevValue );
			return false;
		}

		// update with trigger
		if ( silent !== true ) {
			$input.trigger( 'change' );
		}

		// return
		return true;
	};

	/**
	 *  acf.show
	 *
	 *  description
	 *
	 *  @date	9/2/18
	 *  @since	ACF 5.6.5
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	acf.show = function ( $el, lockKey ) {
		// unlock
		if ( lockKey ) {
			acf.unlock( $el, 'hidden', lockKey );
		}

		// bail early if $el is still locked
		if ( acf.isLocked( $el, 'hidden' ) ) {
			//console.log( 'still locked', getLocks( $el, 'hidden' ));
			return false;
		}

		// $el is hidden, remove class and return true due to change in visibility
		if ( $el.hasClass( 'acf-hidden' ) ) {
			$el.removeClass( 'acf-hidden' );
			return true;

			// $el is visible, return false due to no change in visibility
		} else {
			return false;
		}
	};

	/**
	 *  acf.hide
	 *
	 *  description
	 *
	 *  @date	9/2/18
	 *  @since	ACF 5.6.5
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	acf.hide = function ( $el, lockKey ) {
		// lock
		if ( lockKey ) {
			acf.lock( $el, 'hidden', lockKey );
		}

		// $el is hidden, return false due to no change in visibility
		if ( $el.hasClass( 'acf-hidden' ) ) {
			return false;

			// $el is visible, add class and return true due to change in visibility
		} else {
			$el.addClass( 'acf-hidden' );
			return true;
		}
	};

	/**
	 *  acf.isHidden
	 *
	 *  description
	 *
	 *  @date	9/2/18
	 *  @since	ACF 5.6.5
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	acf.isHidden = function ( $el ) {
		return $el.hasClass( 'acf-hidden' );
	};

	/**
	 *  acf.isVisible
	 *
	 *  description
	 *
	 *  @date	9/2/18
	 *  @since	ACF 5.6.5
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	acf.isVisible = function ( $el ) {
		return ! acf.isHidden( $el );
	};

	/**
	 *  enable
	 *
	 *  description
	 *
	 *  @date	12/3/18
	 *  @since	ACF 5.6.9
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	var enable = function ( $el, lockKey ) {
		// check class. Allow .acf-disabled to overrule all JS
		if ( $el.hasClass( 'acf-disabled' ) ) {
			return false;
		}

		// unlock
		if ( lockKey ) {
			acf.unlock( $el, 'disabled', lockKey );
		}

		// bail early if $el is still locked
		if ( acf.isLocked( $el, 'disabled' ) ) {
			return false;
		}

		// $el is disabled, remove prop and return true due to change
		if ( $el.prop( 'disabled' ) ) {
			$el.prop( 'disabled', false );
			return true;

			// $el is enabled, return false due to no change
		} else {
			return false;
		}
	};

	/**
	 *  acf.enable
	 *
	 *  description
	 *
	 *  @date	9/2/18
	 *  @since	ACF 5.6.5
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	acf.enable = function ( $el, lockKey ) {
		// enable single input
		if ( $el.attr( 'name' ) ) {
			return enable( $el, lockKey );
		}

		// find and enable child inputs
		// return true if any inputs have changed
		var results = false;
		$el.find( '[name]' ).each( function () {
			var result = enable( $( this ), lockKey );
			if ( result ) {
				results = true;
			}
		} );
		return results;
	};

	/**
	 *  disable
	 *
	 *  description
	 *
	 *  @date	12/3/18
	 *  @since	ACF 5.6.9
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	var disable = function ( $el, lockKey ) {
		// lock
		if ( lockKey ) {
			acf.lock( $el, 'disabled', lockKey );
		}

		// $el is disabled, return false due to no change
		if ( $el.prop( 'disabled' ) ) {
			return false;

			// $el is enabled, add prop and return true due to change
		} else {
			$el.prop( 'disabled', true );
			return true;
		}
	};

	/**
	 *  acf.disable
	 *
	 *  description
	 *
	 *  @date	9/2/18
	 *  @since	ACF 5.6.5
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	acf.disable = function ( $el, lockKey ) {
		// disable single input
		if ( $el.attr( 'name' ) ) {
			return disable( $el, lockKey );
		}

		// find and enable child inputs
		// return true if any inputs have changed
		var results = false;
		$el.find( '[name]' ).each( function () {
			var result = disable( $( this ), lockKey );
			if ( result ) {
				results = true;
			}
		} );
		return results;
	};

	/**
	 *  acf.isset
	 *
	 *  description
	 *
	 *  @date	10/1/18
	 *  @since	ACF 5.6.5
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	acf.isset = function ( obj /*, level1, level2, ... */ ) {
		for ( var i = 1; i < arguments.length; i++ ) {
			if ( ! obj || ! obj.hasOwnProperty( arguments[ i ] ) ) {
				return false;
			}
			obj = obj[ arguments[ i ] ];
		}
		return true;
	};

	/**
	 *  acf.isget
	 *
	 *  description
	 *
	 *  @date	10/1/18
	 *  @since	ACF 5.6.5
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	acf.isget = function ( obj /*, level1, level2, ... */ ) {
		for ( var i = 1; i < arguments.length; i++ ) {
			if ( ! obj || ! obj.hasOwnProperty( arguments[ i ] ) ) {
				return null;
			}
			obj = obj[ arguments[ i ] ];
		}
		return obj;
	};

	/**
	 *  acf.getFileInputData
	 *
	 *  description
	 *
	 *  @date	10/1/18
	 *  @since	ACF 5.6.5
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	acf.getFileInputData = function ( $input, callback ) {
		// vars
		var value = $input.val();

		// bail early if no value
		if ( ! value ) {
			return false;
		}

		// data
		var data = {
			url: value,
		};

		// modern browsers
		var file = $input[ 0 ].files.length ? acf.isget( $input[ 0 ].files, 0 ) : false;
		if ( file ) {
			// update data
			data.size = file.size;
			data.type = file.type;

			// image
			if ( file.type.indexOf( 'image' ) > -1 ) {
				// vars
				var windowURL = window.URL || window.webkitURL;
				var img = new Image();

				img.onload = function () {
					// update
					data.width = this.width;
					data.height = this.height;

					callback( data );
				};
				img.src = windowURL.createObjectURL( file );
			} else {
				callback( data );
			}
		} else {
			callback( data );
		}
	};

	/**
	 *  acf.isAjaxSuccess
	 *
	 *  description
	 *
	 *  @date	18/1/18
	 *  @since	ACF 5.6.5
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	acf.isAjaxSuccess = function ( json ) {
		return json && json.success;
	};

	/**
	 *  acf.getAjaxMessage
	 *
	 *  description
	 *
	 *  @date	18/1/18
	 *  @since	ACF 5.6.5
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	acf.getAjaxMessage = function ( json ) {
		return acf.isget( json, 'data', 'message' );
	};

	/**
	 *  acf.getAjaxError
	 *
	 *  description
	 *
	 *  @date	18/1/18
	 *  @since	ACF 5.6.5
	 *
	 *  @param	type $var Description. Default.
	 *  @return	type Description.
	 */

	acf.getAjaxError = function ( json ) {
		return acf.isget( json, 'data', 'error' );
	};

	/**
	 * Returns the error message from an XHR object.
	 *
	 * @date	17/3/20
	 * @since	ACF 5.8.9
	 *
	 * @param	object xhr The XHR object.
	 * @return	(string)
	 */
	acf.getXhrError = function ( xhr ) {
		if ( xhr.responseJSON ) {
			// Responses via `return new WP_Error();`
			if ( xhr.responseJSON.message ) {
				return xhr.responseJSON.message;
			}

			// Responses via `wp_send_json_error();`.
			if ( xhr.responseJSON.data && xhr.responseJSON.data.error ) {
				return xhr.responseJSON.data.error;
			}
		} else if ( xhr.statusText ) {
			return xhr.statusText;
		}

		return '';
	};

	/**
	 *  acf.renderSelect
	 *
	 *  Renders the innter html for a select field.
	 *
	 *  @date	19/2/18
	 *  @since	ACF 5.6.9
	 *
	 *  @param	jQuery $select The select element.
	 *  @param	array choices An array of choices.
	 *  @return	void
	 */

	acf.renderSelect = function ( $select, choices ) {
		// vars
		var value = $select.val();
		var values = [];

		// callback
		var crawl = function ( items ) {
			// vars
			var itemsHtml = '';

			// loop
			items.map( function ( item ) {
				// vars
				var text = item.text || item.label || '';
				var id = item.id || item.value || '';

				// append
				values.push( id );

				//  optgroup
				if ( item.children ) {
					itemsHtml +=
						'<optgroup label="' + acf.escAttr( text ) + '">' + crawl( item.children ) + '</optgroup>';

					// option
				} else {
					itemsHtml +=
						'<option value="' +
						acf.escAttr( id ) +
						'"' +
						( item.disabled ? ' disabled="disabled"' : '' ) +
						'>' +
						acf.strEscape( text ) +
						'</option>';
				}
			} );
			// return
			return itemsHtml;
		};

		// update HTML
		$select.html( crawl( choices ) );

		// update value
		if ( values.indexOf( value ) > -1 ) {
			$select.val( value );
		}

		// return selected value
		return $select.val();
	};

	/**
	 *  acf.lock
	 *
	 *  Creates a "lock" on an element for a given type and key
	 *
	 *  @date	22/2/18
	 *  @since	ACF 5.6.9
	 *
	 *  @param	jQuery $el The element to lock.
	 *  @param	string type The type of lock such as "condition" or "visibility".
	 *  @param	string key The key that will be used to unlock.
	 *  @return	void
	 */

	var getLocks = function ( $el, type ) {
		return $el.data( 'acf-lock-' + type ) || [];
	};

	var setLocks = function ( $el, type, locks ) {
		$el.data( 'acf-lock-' + type, locks );
	};

	acf.lock = function ( $el, type, key ) {
		var locks = getLocks( $el, type );
		var i = locks.indexOf( key );
		if ( i < 0 ) {
			locks.push( key );
			setLocks( $el, type, locks );
		}
	};

	/**
	 *  acf.unlock
	 *
	 *  Unlocks a "lock" on an element for a given type and key
	 *
	 *  @date	22/2/18
	 *  @since	ACF 5.6.9
	 *
	 *  @param	jQuery $el The element to lock.
	 *  @param	string type The type of lock such as "condition" or "visibility".
	 *  @param	string key The key that will be used to unlock.
	 *  @return	void
	 */

	acf.unlock = function ( $el, type, key ) {
		var locks = getLocks( $el, type );
		var i = locks.indexOf( key );
		if ( i > -1 ) {
			locks.splice( i, 1 );
			setLocks( $el, type, locks );
		}

		// return true if is unlocked (no locks)
		return locks.length === 0;
	};

	/**
	 *  acf.isLocked
	 *
	 *  Returns true if a lock exists for a given type
	 *
	 *  @date	22/2/18
	 *  @since	ACF 5.6.9
	 *
	 *  @param	jQuery $el The element to lock.
	 *  @param	string type The type of lock such as "condition" or "visibility".
	 *  @return	void
	 */

	acf.isLocked = function ( $el, type ) {
		return getLocks( $el, type ).length > 0;
	};

	/**
	 *  acf.isGutenberg
	 *
	 *  Returns true if the Gutenberg editor is being used.
	 *
	 *  @since	ACF 5.8.0
	 *
	 *  @return	bool
	 */
	acf.isGutenberg = function () {
		return !! ( window.wp && wp.data && wp.data.select && wp.data.select( 'core/editor' ) );
	};

	/**
	 *  acf.isGutenbergPostEditor
	 *
	 *  Returns true if the Gutenberg post editor is being used.
	 *
	 *  @since	ACF 6.2.2
	 *
	 *  @return	bool
	 */
	acf.isGutenbergPostEditor = function () {
		return !! ( window.wp && wp.data && wp.data.select && wp.data.select( 'core/edit-post' ) );
	};

	/**
	 *  acf.objectToArray
	 *
	 *  Returns an array of items from the given object.
	 *
	 *  @date	20/11/18
	 *  @since	ACF 5.8.0
	 *
	 *  @param	object obj The object of items.
	 *  @return	array
	 */
	acf.objectToArray = function ( obj ) {
		return Object.keys( obj ).map( function ( key ) {
			return obj[ key ];
		} );
	};

	/**
	 * acf.debounce
	 *
	 * Returns a debounced version of the passed function which will postpone its execution until after `wait` milliseconds have elapsed since the last time it was invoked.
	 *
	 * @date	28/8/19
	 * @since	ACF 5.8.1
	 *
	 * @param	function callback The callback function.
	 * @return	int wait The number of milliseconds to wait.
	 */
	acf.debounce = function ( callback, wait ) {
		var timeout;
		return function () {
			var context = this;
			var args = arguments;
			var later = function () {
				callback.apply( context, args );
			};
			clearTimeout( timeout );
			timeout = setTimeout( later, wait );
		};
	};

	/**
	 * acf.throttle
	 *
	 * Returns a throttled version of the passed function which will allow only one execution per `limit` time period.
	 *
	 * @date	28/8/19
	 * @since	ACF 5.8.1
	 *
	 * @param	function callback The callback function.
	 * @return	int wait The number of milliseconds to wait.
	 */
	acf.throttle = function ( callback, limit ) {
		var busy = false;
		return function () {
			if ( busy ) return;
			busy = true;
			setTimeout( function () {
				busy = false;
			}, limit );
			callback.apply( this, arguments );
		};
	};

	/**
	 * acf.isInView
	 *
	 * Returns true if the given element is in view.
	 *
	 * @date	29/8/19
	 * @since	ACF 5.8.1
	 *
	 * @param	elem el The dom element to inspect.
	 * @return	bool
	 */
	acf.isInView = function ( el ) {
		if ( el instanceof jQuery ) {
			el = el[ 0 ];
		}
		var rect = el.getBoundingClientRect();
		return (
			rect.top !== rect.bottom &&
			rect.top >= 0 &&
			rect.left >= 0 &&
			rect.bottom <= ( window.innerHeight || document.documentElement.clientHeight ) &&
			rect.right <= ( window.innerWidth || document.documentElement.clientWidth )
		);
	};

	/**
	 * acf.onceInView
	 *
	 * Watches for a dom element to become visible in the browser and then excecutes the passed callback.
	 *
	 * @date	28/8/19
	 * @since	ACF 5.8.1
	 *
	 * @param	dom el The dom element to inspect.
	 * @param	function callback The callback function.
	 */
	acf.onceInView = ( function () {
		// Define list.
		var items = [];
		var id = 0;

		// Define check function.
		var check = function () {
			items.forEach( function ( item ) {
				if ( acf.isInView( item.el ) ) {
					item.callback.apply( this );
					pop( item.id );
				}
			} );
		};

		// And create a debounced version.
		var debounced = acf.debounce( check, 300 );

		// Define add function.
		var push = function ( el, callback ) {
			// Add event listener.
			if ( ! items.length ) {
				$( window ).on( 'scroll resize', debounced ).on( 'acfrefresh orientationchange', check );
			}

			// Append to list.
			items.push( { id: id++, el: el, callback: callback } );
		};

		// Define remove function.
		var pop = function ( id ) {
			// Remove from list.
			items = items.filter( function ( item ) {
				return item.id !== id;
			} );

			// Clean up listener.
			if ( ! items.length ) {
				$( window ).off( 'scroll resize', debounced ).off( 'acfrefresh orientationchange', check );
			}
		};

		// Define returned function.
		return function ( el, callback ) {
			// Allow jQuery object.
			if ( el instanceof jQuery ) el = el[ 0 ];

			// Execute callback if already in view or add to watch list.
			if ( acf.isInView( el ) ) {
				callback.apply( this );
			} else {
				push( el, callback );
			}
		};
	} )();

	/**
	 * acf.once
	 *
	 * Creates a function that is restricted to invoking `func` once.
	 *
	 * @date	2/9/19
	 * @since	ACF 5.8.1
	 *
	 * @param	function func The function to restrict.
	 * @return	function
	 */
	acf.once = function ( func ) {
		var i = 0;
		return function () {
			if ( i++ > 0 ) {
				return ( func = undefined );
			}
			return func.apply( this, arguments );
		};
	};

	/**
	 * Focuses attention to a specific element.
	 *
	 * @date	05/05/2020
	 * @since	ACF 5.9.0
	 *
	 * @param	jQuery $el The jQuery element to focus.
	 * @return	void
	 */
	acf.focusAttention = function ( $el ) {
		var wait = 1000;

		// Apply class to focus attention.
		$el.addClass( 'acf-attention -focused' );

		// Scroll to element if needed.
		var scrollTime = 500;
		if ( ! acf.isInView( $el ) ) {
			$( 'body, html' ).animate(
				{
					scrollTop: $el.offset().top - $( window ).height() / 2,
				},
				scrollTime
			);
			wait += scrollTime;
		}

		// Remove class after $wait amount of time.
		var fadeTime = 250;
		setTimeout( function () {
			$el.removeClass( '-focused' );
			setTimeout( function () {
				$el.removeClass( 'acf-attention' );
			}, fadeTime );
		}, wait );
	};

	/**
	 * Description
	 *
	 * @date	05/05/2020
	 * @since	ACF 5.9.0
	 *
	 * @param	type Var Description.
	 * @return	type Description.
	 */
	acf.onFocus = function ( $el, callback ) {
		// Only run once per element.
		// if( $el.data('acf.onFocus') ) {
		// 	return false;
		// }

		// Vars.
		var ignoreBlur = false;
		var focus = false;

		// Functions.
		var onFocus = function () {
			ignoreBlur = true;
			setTimeout( function () {
				ignoreBlur = false;
			}, 1 );
			setFocus( true );
		};
		var onBlur = function () {
			if ( ! ignoreBlur ) {
				setFocus( false );
			}
		};
		var addEvents = function () {
			$( document ).on( 'click', onBlur );
			//$el.on('acfBlur', onBlur);
			$el.on( 'blur', 'input, select, textarea', onBlur );
		};
		var removeEvents = function () {
			$( document ).off( 'click', onBlur );
			//$el.off('acfBlur', onBlur);
			$el.off( 'blur', 'input, select, textarea', onBlur );
		};
		var setFocus = function ( value ) {
			if ( focus === value ) {
				return;
			}
			if ( value ) {
				addEvents();
			} else {
				removeEvents();
			}
			focus = value;
			callback( value );
		};

		// Add events and set data.
		$el.on( 'click', onFocus );
		//$el.on('acfFocus', onFocus);
		$el.on( 'focus', 'input, select, textarea', onFocus );
		//$el.data('acf.onFocus', true);
	};

	/**
	 * Disable form submit buttons
	 *
	 * @since ACF 6.2.3
	 *
	 * @param event e
	 * @returns void
	 */
	acf.disableForm = function ( e ) {
		// Disable submit button.
		if ( e.submitter ) e.submitter.classList.add( 'disabled' );
	};

	/*
	 *  exists
	 *
	 *  This function will return true if a jQuery selection exists
	 *
	 *  @type	function
	 *  @date	8/09/2014
	 *  @since	ACF 5.0.0
	 *
	 *  @param	n/a
	 *  @return	(boolean)
	 */

	$.fn.exists = function () {
		return $( this ).length > 0;
	};

	/*
	 *  outerHTML
	 *
	 *  This function will return a string containing the HTML of the selected element
	 *
	 *  @type	function
	 *  @date	19/11/2013
	 *  @since	ACF 5.0.0
	 *
	 *  @param	$.fn
	 *  @return	(string)
	 */

	$.fn.outerHTML = function () {
		return $( this ).get( 0 ).outerHTML;
	};

	/*
	 *  indexOf
	 *
	 *  This function will provide compatibility for ie8
	 *
	 *  @type	function
	 *  @date	5/3/17
	 *  @since	ACF 5.5.10
	 *
	 *  @param	n/a
	 *  @return	n/a
	 */

	if ( ! Array.prototype.indexOf ) {
		Array.prototype.indexOf = function ( val ) {
			return $.inArray( val, this );
		};
	}

	/**
	 * Returns true if value is a number or a numeric string.
	 *
	 * @date	30/11/20
	 * @since	ACF 5.9.4
	 * @link	https://stackoverflow.com/questions/9716468/pure-javascript-a-function-like-jquerys-isnumeric/9716488#9716488
	 *
	 * @param	mixed n The variable being evaluated.
	 * @return	bool.
	 */
	acf.isNumeric = function ( n ) {
		return ! isNaN( parseFloat( n ) ) && isFinite( n );
	};

	/**
	 * Triggers a "refresh" action used by various Components to redraw the DOM.
	 *
	 * @date	26/05/2020
	 * @since	ACF 5.9.0
	 *
	 * @param	void
	 * @return	void
	 */
	acf.refresh = acf.debounce( function () {
		$( window ).trigger( 'acfrefresh' );
		acf.doAction( 'refresh' );
	}, 0 );

	/**
	 * Log something to console if we're in debug mode.
	 *
	 * @since ACF 6.3
	 */
	acf.debug = function () {
		if ( acf.get( 'debug' ) ) console.log.apply( null, arguments );
	};

	// Set up actions from events
	$( document ).ready( function () {
		acf.doAction( 'ready' );
	} );

	$( window ).on( 'load', function () {
		// Use timeout to ensure action runs after Gutenberg has modified DOM elements during "DOMContentLoaded".
		setTimeout( function () {
			acf.doAction( 'load' );
		} );
	} );

	$( window ).on( 'beforeunload', function () {
		acf.doAction( 'unload' );
	} );

	$( window ).on( 'resize', function () {
		acf.doAction( 'resize' );
	} );

	$( document ).on( 'sortstart', function ( event, ui ) {
		acf.doAction( 'sortstart', ui.item, ui.placeholder );
	} );

	$( document ).on( 'sortstop', function ( event, ui ) {
		acf.doAction( 'sortstop', ui.item, ui.placeholder );
	} );
} )( jQuery );
