jquery/dist/jquery.js

JavaScript library for DOM operations

/*!
 * jQuery JavaScript Library v4.0.0-beta
 * https://jquery.com/
 *
 * Copyright OpenJS Foundation and other contributors
 * Released under the MIT license
 * https://jquery.org/license
 *
 * Date: 2024-02-06T16:40Z
 */
( function( global, factory ) {

	"use strict";

	if ( typeof module === "object" && typeof module.exports === "object" ) {

		// For CommonJS and CommonJS-like environments where a proper `window`
		// is present, execute the factory and get jQuery.
		module.exports = factory( global, true );
	} else {
		factory( global );
	}

// Pass this if window is not defined yet
} )( typeof window !== "undefined" ? window : this, function( window, noGlobal ) {

"use strict";

if ( !window.document ) {
	throw new Error( "jQuery requires a window with a document" );
}

var arr = [];

var getProto = Object.getPrototypeOf;

var slice = arr.slice;

// Support: IE 11+
// IE doesn't have Array#flat; provide a fallback.
var flat = arr.flat ? function( array ) {
	return arr.flat.call( array );
} : function( array ) {
	return arr.concat.apply( [], array );
};

var push = arr.push;

var indexOf = arr.indexOf;

// [[Class]] -> type pairs
var class2type = {};

var toString = class2type.toString;

var hasOwn = class2type.hasOwnProperty;

var fnToString = hasOwn.toString;

var ObjectFunctionString = fnToString.call( Object );

// All support tests are defined in their respective modules.
var support = {};

function toType( obj ) {
	if ( obj == null ) {
		return obj + "";
	}

	return typeof obj === "object" ?
		class2type[ toString.call( obj ) ] || "object" :
		typeof obj;
}

function isWindow( obj ) {
	return obj != null && obj === obj.window;
}

function isArrayLike( obj ) {

	var length = !!obj && obj.length,
		type = toType( obj );

	if ( typeof obj === "function" || isWindow( obj ) ) {
		return false;
	}

	return type === "array" || length === 0 ||
		typeof length === "number" && length > 0 && ( length - 1 ) in obj;
}

var document = window.document;

var preservedScriptAttributes = {
	type: true,
	src: true,
	nonce: true,
	noModule: true
};

function DOMEval( code, node, doc ) {
	doc = doc || document;

	var i,
		script = doc.createElement( "script" );

	script.text = code;
	for ( i in preservedScriptAttributes ) {
		if ( node && node[ i ] ) {
			script[ i ] = node[ i ];
		}
	}

	if ( doc.head.appendChild( script ).parentNode ) {
		script.parentNode.removeChild( script );
	}
}

var version = "4.0.0-beta",

	rhtmlSuffix = /HTML$/i,

	// Define a local copy of jQuery
	jQuery = function( selector, context ) {

		// The jQuery object is actually just the init constructor 'enhanced'
		// Need init if jQuery is called (just allow error to be thrown if not included)
		return new jQuery.fn.init( selector, context );
	};

jQuery.fn = jQuery.prototype = {

	// The current version of jQuery being used
	jquery: version,

	constructor: jQuery,

	// The default length of a jQuery object is 0
	length: 0,

	toArray: function() {
		return slice.call( this );
	},

	// Get the Nth element in the matched element set OR
	// Get the whole matched element set as a clean array
	get: function( num ) {

		// Return all the elements in a clean array
		if ( num == null ) {
			return slice.call( this );
		}

		// Return just the one element from the set
		return num < 0 ? this[ num + this.length ] : this[ num ];
	},

	// Take an array of elements and push it onto the stack
	// (returning the new matched element set)
	pushStack: function( elems ) {

		// Build a new jQuery matched element set
		var ret = jQuery.merge( this.constructor(), elems );

		// Add the old object onto the stack (as a reference)
		ret.prevObject = this;

		// Return the newly-formed element set
		return ret;
	},

	// Execute a callback for every element in the matched set.
	each: function( callback ) {
		return jQuery.each( this, callback );
	},

	map: function( callback ) {
		return this.pushStack( jQuery.map( this, function( elem, i ) {
			return callback.call( elem, i, elem );
		} ) );
	},

	slice: function() {
		return this.pushStack( slice.apply( this, arguments ) );
	},

	first: function() {
		return this.eq( 0 );
	},

	last: function() {
		return this.eq( -1 );
	},

	even: function() {
		return this.pushStack( jQuery.grep( this, function( _elem, i ) {
			return ( i + 1 ) % 2;
		} ) );
	},

	odd: function() {
		return this.pushStack( jQuery.grep( this, function( _elem, i ) {
			return i % 2;
		} ) );
	},

	eq: function( i ) {
		var len = this.length,
			j = +i + ( i < 0 ? len : 0 );
		return this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] );
	},

	end: function() {
		return this.prevObject || this.constructor();
	}
};

jQuery.extend = jQuery.fn.extend = function() {
	var options, name, src, copy, copyIsArray, clone,
		target = arguments[ 0 ] || {},
		i = 1,
		length = arguments.length,
		deep = false;

	// Handle a deep copy situation
	if ( typeof target === "boolean" ) {
		deep = target;

		// Skip the boolean and the target
		target = arguments[ i ] || {};
		i++;
	}

	// Handle case when target is a string or something (possible in deep copy)
	if ( typeof target !== "object" && typeof target !== "function" ) {
		target = {};
	}

	// Extend jQuery itself if only one argument is passed
	if ( i === length ) {
		target = this;
		i--;
	}

	for ( ; i < length; i++ ) {

		// Only deal with non-null/undefined values
		if ( ( options = arguments[ i ] ) != null ) {

			// Extend the base object
			for ( name in options ) {
				copy = options[ name ];

				// Prevent Object.prototype pollution
				// Prevent never-ending loop
				if ( name === "__proto__" || target === copy ) {
					continue;
				}

				// Recurse if we're merging plain objects or arrays
				if ( deep && copy && ( jQuery.isPlainObject( copy ) ||
					( copyIsArray = Array.isArray( copy ) ) ) ) {
					src = target[ name ];

					// Ensure proper type for the source value
					if ( copyIsArray && !Array.isArray( src ) ) {
						clone = [];
					} else if ( !copyIsArray && !jQuery.isPlainObject( src ) ) {
						clone = {};
					} else {
						clone = src;
					}
					copyIsArray = false;

					// Never move original objects, clone them
					target[ name ] = jQuery.extend( deep, clone, copy );

				// Don't bring in undefined values
				} else if ( copy !== undefined ) {
					target[ name ] = copy;
				}
			}
		}
	}

	// Return the modified object
	return target;
};

jQuery.extend( {

	// Unique for each copy of jQuery on the page
	expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ),

	// Assume jQuery is ready without the ready module
	isReady: true,

	error: function( msg ) {
		throw new Error( msg );
	},

	noop: function() {},

	isPlainObject: function( obj ) {
		var proto, Ctor;

		// Detect obvious negatives
		// Use toString instead of jQuery.type to catch host objects
		if ( !obj || toString.call( obj ) !== "[object Object]" ) {
			return false;
		}

		proto = getProto( obj );

		// Objects with no prototype (e.g., `Object.create( null )`) are plain
		if ( !proto ) {
			return true;
		}

		// Objects with prototype are plain iff they were constructed by a global Object function
		Ctor = hasOwn.call( proto, "constructor" ) && proto.constructor;
		return typeof Ctor === "function" && fnToString.call( Ctor ) === ObjectFunctionString;
	},

	isEmptyObject: function( obj ) {
		var name;

		for ( name in obj ) {
			return false;
		}
		return true;
	},

	// Evaluates a script in a provided context; falls back to the global one
	// if not specified.
	globalEval: function( code, options, doc ) {
		DOMEval( code, { nonce: options && options.nonce }, doc );
	},

	each: function( obj, callback ) {
		var length, i = 0;

		if ( isArrayLike( obj ) ) {
			length = obj.length;
			for ( ; i < length; i++ ) {
				if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
					break;
				}
			}
		} else {
			for ( i in obj ) {
				if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
					break;
				}
			}
		}

		return obj;
	},


	// Retrieve the text value of an array of DOM nodes
	text: function( elem ) {
		var node,
			ret = "",
			i = 0,
			nodeType = elem.nodeType;

		if ( !nodeType ) {

			// If no nodeType, this is expected to be an array
			while ( ( node = elem[ i++ ] ) ) {

				// Do not traverse comment nodes
				ret += jQuery.text( node );
			}
		}
		if ( nodeType === 1 || nodeType === 11 ) {
			return elem.textContent;
		}
		if ( nodeType === 9 ) {
			return elem.documentElement.textContent;
		}
		if ( nodeType === 3 || nodeType === 4 ) {
			return elem.nodeValue;
		}

		// Do not include comment or processing instruction nodes

		return ret;
	},


	// results is for internal usage only
	makeArray: function( arr, results ) {
		var ret = results || [];

		if ( arr != null ) {
			if ( isArrayLike( Object( arr ) ) ) {
				jQuery.merge( ret,
					typeof arr === "string" ?
						[ arr ] : arr
				);
			} else {
				push.call( ret, arr );
			}
		}

		return ret;
	},

	inArray: function( elem, arr, i ) {
		return arr == null ? -1 : indexOf.call( arr, elem, i );
	},

	isXMLDoc: function( elem ) {
		var namespace = elem && elem.namespaceURI,
			docElem = elem && ( elem.ownerDocument || elem ).documentElement;

		// Assume HTML when documentElement doesn't yet exist, such as inside
		// document fragments.
		return !rhtmlSuffix.test( namespace || docElem && docElem.nodeName || "HTML" );
	},

	// Note: an element does not contain itself
	contains: function( a, b ) {
		var bup = b && b.parentNode;

		return a === bup || !!( bup && bup.nodeType === 1 && (

			// Support: IE 9 - 11+
			// IE doesn't have `contains` on SVG.
			a.contains ?
				a.contains( bup ) :
				a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
		) );
	},

	merge: function( first, second ) {
		var len = +second.length,
			j = 0,
			i = first.length;

		for ( ; j < len; j++ ) {
			first[ i++ ] = second[ j ];
		}

		first.length = i;

		return first;
	},

	grep: function( elems, callback, invert ) {
		var callbackInverse,
			matches = [],
			i = 0,
			length = elems.length,
			callbackExpect = !invert;

		// Go through the array, only saving the items
		// that pass the validator function
		for ( ; i < length; i++ ) {
			callbackInverse = !callback( elems[ i ], i );
			if ( callbackInverse !== callbackExpect ) {
				matches.push( elems[ i ] );
			}
		}

		return matches;
	},

	// arg is for internal usage only
	map: function( elems, callback, arg ) {
		var length, value,
			i = 0,
			ret = [];

		// Go through the array, translating each of the items to their new values
		if ( isArrayLike( elems ) ) {
			length = elems.length;
			for ( ; i < length; i++ ) {
				value = callback( elems[ i ], i, arg );

				if ( value != null ) {
					ret.push( value );
				}
			}

		// Go through every key on the object,
		} else {
			for ( i in elems ) {
				value = callback( elems[ i ], i, arg );

				if ( value != null ) {
					ret.push( value );
				}
			}
		}

		// Flatten any nested arrays
		return flat( ret );
	},

	// A global GUID counter for objects
	guid: 1,

	// jQuery.support is not used in Core but other projects attach their
	// properties to it so it needs to exist.
	support: support
} );

if ( typeof Symbol === "function" ) {
	jQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ];
}

// Populate the class2type map
jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ),
	function( _i, name ) {
		class2type[ "[object " + name + "]" ] = name.toLowerCase();
	} );

function nodeName( elem, name ) {
	return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
}

var pop = arr.pop;

// https://www.w3.org/TR/css3-selectors/#whitespace
var whitespace = "[\\x20\\t\\r\\n\\f]";

var isIE = document.documentMode;

// Support: Chrome 105 - 111 only, Safari 15.4 - 16.3 only
// Make sure the `:has()` argument is parsed unforgivingly.
// We include `*` in the test to detect buggy implementations that are
// _selectively_ forgiving (specifically when the list includes at least
// one valid selector).
// Note that we treat complete lack of support for `:has()` as if it were
// spec-compliant support, which is fine because use of `:has()` in such
// environments will fail in the qSA path and fall back to jQuery traversal
// anyway.
try {
	document.querySelector( ":has(*,:jqfake)" );
	support.cssHas = false;
} catch ( e ) {
	support.cssHas = true;
}

// Build QSA regex.
// Regex strategy adopted from Diego Perini.
var rbuggyQSA = [];

if ( isIE ) {
	rbuggyQSA.push(

		// Support: IE 9 - 11+
		// IE's :disabled selector does not pick up the children of disabled fieldsets
		":enabled",
		":disabled",

		// Support: IE 11+
		// IE 11 doesn't find elements on a `[name='']` query in some cases.
		// Adding a temporary attribute to the document before the selection works
		// around the issue.
		"\\[" + whitespace + "*name" + whitespace + "*=" +
			whitespace + "*(?:''|\"\")"
	);
}

if ( !support.cssHas ) {

	// Support: Chrome 105 - 110+, Safari 15.4 - 16.3+
	// Our regular `try-catch` mechanism fails to detect natively-unsupported
	// pseudo-classes inside `:has()` (such as `:has(:contains("Foo"))`)
	// in browsers that parse the `:has()` argument as a forgiving selector list.
	// https://drafts.csswg.org/selectors/#relational now requires the argument
	// to be parsed unforgivingly, but browsers have not yet fully adjusted.
	rbuggyQSA.push( ":has" );
}

rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join( "|" ) );

var rtrimCSS = new RegExp(
	"^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$",
	"g"
);

// https://www.w3.org/TR/css-syntax-3/#ident-token-diagram
var identifier = "(?:\\\\[\\da-fA-F]{1,6}" + whitespace +
	"?|\\\\[^\\r\\n\\f]|[\\w-]|[^\0-\\x7f])+";

var rleadingCombinator = new RegExp( "^" + whitespace + "*([>+~]|" +
	whitespace + ")" + whitespace + "*" );

var rdescend = new RegExp( whitespace + "|>" );

var rsibling = /[+~]/;

var documentElement = document.documentElement;

// Support: IE 9 - 11+
// IE requires a prefix.
var matches = documentElement.matches || documentElement.msMatchesSelector;

/**
 * Create key-value caches of limited size
 * @returns {function(string, object)} Returns the Object data after storing it on itself with
 *	property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
 *	deleting the oldest entry
 */
function createCache() {
	var keys = [];

	function cache( key, value ) {

		// Use (key + " ") to avoid collision with native prototype properties
		// (see https://github.com/jquery/sizzle/issues/157)
		if ( keys.push( key + " " ) > jQuery.expr.cacheLength ) {

			// Only keep the most recent entries
			delete cache[ keys.shift() ];
		}
		return ( cache[ key + " " ] = value );
	}
	return cache;
}

/**
 * Checks a node for validity as a jQuery selector context
 * @param {Element|Object=} context
 * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
 */
function testContext( context ) {
	return context && typeof context.getElementsByTagName !== "undefined" && context;
}

// Attribute selectors: https://www.w3.org/TR/selectors/#attribute-selectors
var attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace +

	// Operator (capture 2)
	"*([*^$|!~]?=)" + whitespace +

	// "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]"
	"*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" +
	whitespace + "*\\]";

var pseudos = ":(" + identifier + ")(?:\\((" +

	// To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
	// 1. quoted (capture 3; capture 4 or capture 5)
	"('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +

	// 2. simple (capture 6)
	"((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +

	// 3. anything else (capture 2)
	".*" +
	")\\)|)";

var filterMatchExpr = {
	ID: new RegExp( "^#(" + identifier + ")" ),
	CLASS: new RegExp( "^\\.(" + identifier + ")" ),
	TAG: new RegExp( "^(" + identifier + "|[*])" ),
	ATTR: new RegExp( "^" + attributes ),
	PSEUDO: new RegExp( "^" + pseudos ),
	CHILD: new RegExp(
		"^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" +
		whitespace + "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" +
		whitespace + "*(\\d+)|))" + whitespace + "*\\)|)", "i" )
};

var rpseudo = new RegExp( pseudos );

// CSS escapes

var runescape = new RegExp( "\\\\[\\da-fA-F]{1,6}" + whitespace +
	"?|\\\\([^\\r\\n\\f])", "g" ),
	funescape = function( escape, nonHex ) {
		var high = "0x" + escape.slice( 1 ) - 0x10000;

		if ( nonHex ) {

			// Strip the backslash prefix from a non-hex escape sequence
			return nonHex;
		}

		// Replace a hexadecimal escape sequence with the encoded Unicode code point
		// Support: IE <=11+
		// For values outside the Basic Multilingual Plane (BMP), manually construct a
		// surrogate pair
		return high < 0 ?
			String.fromCharCode( high + 0x10000 ) :
			String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
	};

function unescapeSelector( sel ) {
	return sel.replace( runescape, funescape );
}

function selectorError( msg ) {
	jQuery.error( "Syntax error, unrecognized expression: " + msg );
}

var rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" );

var tokenCache = createCache();

function tokenize( selector, parseOnly ) {
	var matched, match, tokens, type,
		soFar, groups, preFilters,
		cached = tokenCache[ selector + " " ];

	if ( cached ) {
		return parseOnly ? 0 : cached.slice( 0 );
	}

	soFar = selector;
	groups = [];
	preFilters = jQuery.expr.preFilter;

	while ( soFar ) {

		// Comma and first run
		if ( !matched || ( match = rcomma.exec( soFar ) ) ) {
			if ( match ) {

				// Don't consume trailing commas as valid
				soFar = soFar.slice( match[ 0 ].length ) || soFar;
			}
			groups.push( ( tokens = [] ) );
		}

		matched = false;

		// Combinators
		if ( ( match = rleadingCombinator.exec( soFar ) ) ) {
			matched = match.shift();
			tokens.push( {
				value: matched,

				// Cast descendant combinators to space
				type: match[ 0 ].replace( rtrimCSS, " " )
			} );
			soFar = soFar.slice( matched.length );
		}

		// Filters
		for ( type in filterMatchExpr ) {
			if ( ( match = jQuery.expr.match[ type ].exec( soFar ) ) && ( !preFilters[ type ] ||
				( match = preFilters[ type ]( match ) ) ) ) {
				matched = match.shift();
				tokens.push( {
					value: matched,
					type: type,
					matches: match
				} );
				soFar = soFar.slice( matched.length );
			}
		}

		if ( !matched ) {
			break;
		}
	}

	// Return the length of the invalid excess
	// if we're just parsing
	// Otherwise, throw an error or return tokens
	if ( parseOnly ) {
		return soFar.length;
	}

	return soFar ?
		selectorError( selector ) :

		// Cache the tokens
		tokenCache( selector, groups ).slice( 0 );
}

var preFilter = {
	ATTR: function( match ) {
		match[ 1 ] = unescapeSelector( match[ 1 ] );

		// Move the given value to match[3] whether quoted or unquoted
		match[ 3 ] = unescapeSelector( match[ 3 ] || match[ 4 ] || match[ 5 ] || "" );

		if ( match[ 2 ] === "~=" ) {
			match[ 3 ] = " " + match[ 3 ] + " ";
		}

		return match.slice( 0, 4 );
	},

	CHILD: function( match ) {

		/* matches from filterMatchExpr["CHILD"]
			1 type (only|nth|...)
			2 what (child|of-type)
			3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
			4 xn-component of xn+y argument ([+-]?\d*n|)
			5 sign of xn-component
			6 x of xn-component
			7 sign of y-component
			8 y of y-component
		*/
		match[ 1 ] = match[ 1 ].toLowerCase();

		if ( match[ 1 ].slice( 0, 3 ) === "nth" ) {

			// nth-* requires argument
			if ( !match[ 3 ] ) {
				selectorError( match[ 0 ] );
			}

			// numeric x and y parameters for jQuery.expr.filter.CHILD
			// remember that false/true cast respectively to 0/1
			match[ 4 ] = +( match[ 4 ] ?
				match[ 5 ] + ( match[ 6 ] || 1 ) :
				2 * ( match[ 3 ] === "even" || match[ 3 ] === "odd" )
			);
			match[ 5 ] = +( ( match[ 7 ] + match[ 8 ] ) || match[ 3 ] === "odd" );

		// other types prohibit arguments
		} else if ( match[ 3 ] ) {
			selectorError( match[ 0 ] );
		}

		return match;
	},

	PSEUDO: function( match ) {
		var excess,
			unquoted = !match[ 6 ] && match[ 2 ];

		if ( filterMatchExpr.CHILD.test( match[ 0 ] ) ) {
			return null;
		}

		// Accept quoted arguments as-is
		if ( match[ 3 ] ) {
			match[ 2 ] = match[ 4 ] || match[ 5 ] || "";

		// Strip excess characters from unquoted arguments
		} else if ( unquoted && rpseudo.test( unquoted ) &&

			// Get excess from tokenize (recursively)
			( excess = tokenize( unquoted, true ) ) &&

			// advance to the next closing parenthesis
			( excess = unquoted.indexOf( ")", unquoted.length - excess ) -
				unquoted.length ) ) {

			// excess is a negative index
			match[ 0 ] = match[ 0 ].slice( 0, excess );
			match[ 2 ] = unquoted.slice( 0, excess );
		}

		// Return only captures needed by the pseudo filter method (type and argument)
		return match.slice( 0, 3 );
	}
};

function toSelector( tokens ) {
	var i = 0,
		len = tokens.length,
		selector = "";
	for ( ; i < len; i++ ) {
		selector += tokens[ i ].value;
	}
	return selector;
}

// Multifunctional method to get and set values of a collection
// The value/s can optionally be executed if it's a function
function access( elems, fn, key, value, chainable, emptyGet, raw ) {
	var i = 0,
		len = elems.length,
		bulk = key == null;

	// Sets many values
	if ( toType( key ) === "object" ) {
		chainable = true;
		for ( i in key ) {
			access( elems, fn, i, key[ i ], true, emptyGet, raw );
		}

	// Sets one value
	} else if ( value !== undefined ) {
		chainable = true;

		if ( typeof value !== "function" ) {
			raw = true;
		}

		if ( bulk ) {

			// Bulk operations run against the entire set
			if ( raw ) {
				fn.call( elems, value );
				fn = null;

			// ...except when executing function values
			} else {
				bulk = fn;
				fn = function( elem, _key, value ) {
					return bulk.call( jQuery( elem ), value );
				};
			}
		}

		if ( fn ) {
			for ( ; i < len; i++ ) {
				fn(
					elems[ i ], key, raw ?
						value :
						value.call( elems[ i ], i, fn( elems[ i ], key ) )
				);
			}
		}
	}

	if ( chainable ) {
		return elems;
	}

	// Gets
	if ( bulk ) {
		return fn.call( elems );
	}

	return len ? fn( elems[ 0 ], key ) : emptyGet;
}

// Only count HTML whitespace
// Other whitespace should count in values
// https://infra.spec.whatwg.org/#ascii-whitespace
var rnothtmlwhite = /[^\x20\t\r\n\f]+/g;

jQuery.fn.extend( {
	attr: function( name, value ) {
		return access( this, jQuery.attr, name, value, arguments.length > 1 );
	},

	removeAttr: function( name ) {
		return this.each( function() {
			jQuery.removeAttr( this, name );
		} );
	}
} );

jQuery.extend( {
	attr: function( elem, name, value ) {
		var ret, hooks,
			nType = elem.nodeType;

		// Don't get/set attributes on text, comment and attribute nodes
		if ( nType === 3 || nType === 8 || nType === 2 ) {
			return;
		}

		// Fallback to prop when attributes are not supported
		if ( typeof elem.getAttribute === "undefined" ) {
			return jQuery.prop( elem, name, value );
		}

		// Attribute hooks are determined by the lowercase version
		// Grab necessary hook if one is defined
		if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
			hooks = jQuery.attrHooks[ name.toLowerCase() ];
		}

		if ( value !== undefined ) {
			if ( value === null ) {
				jQuery.removeAttr( elem, name );
				return;
			}

			if ( hooks && "set" in hooks &&
				( ret = hooks.set( elem, value, name ) ) !== undefined ) {
				return ret;
			}

			elem.setAttribute( name, value );
			return value;
		}

		if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
			return ret;
		}

		ret = elem.getAttribute( name );

		// Non-existent attributes return null, we normalize to undefined
		return ret == null ? undefined : ret;
	},

	attrHooks: {},

	removeAttr: function( elem, value ) {
		var name,
			i = 0,

			// Attribute names can contain non-HTML whitespace characters
			// https://html.spec.whatwg.org/multipage/syntax.html#attributes-2
			attrNames = value && value.match( rnothtmlwhite );

		if ( attrNames && elem.nodeType === 1 ) {
			while ( ( name = attrNames[ i++ ] ) ) {
				elem.removeAttribute( name );
			}
		}
	}
} );

// Support: IE <=11+
// An input loses its value after becoming a radio
if ( isIE ) {
	jQuery.attrHooks.type = {
		set: function( elem, value ) {
			if ( value === "radio" && nodeName( elem, "input" ) ) {
				var val = elem.value;
				elem.setAttribute( "type", value );
				if ( val ) {
					elem.value = val;
				}
				return value;
			}
		}
	};
}

// HTML boolean attributes have special behavior:
// we consider the lowercase name to be the only valid value, so
// getting (if the attribute is present) normalizes to that, as does
// setting to any non-`false` value (and setting to `false` removes the attribute).
// See https://html.spec.whatwg.org/multipage/common-microsyntaxes.html#boolean-attributes
jQuery.each( (
	"checked selected async autofocus autoplay controls defer disabled " +
	"hidden ismap loop multiple open readonly required scoped"
).split( " " ), function( _i, name ) {
	jQuery.attrHooks[ name ] = {
		get: function( elem ) {
			return elem.getAttribute( name ) != null ?
				name.toLowerCase() :
				null;
		},

		set: function( elem, value, name ) {
			if ( value === false ) {

				// Remove boolean attributes when set to false
				jQuery.removeAttr( elem, name );
			} else {
				elem.setAttribute( name, name );
			}
			return name;
		}
	};
} );

// CSS string/identifier serialization
// https://drafts.csswg.org/cssom/#common-serializing-idioms
var rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\x80-\uFFFF\w-]/g;

function fcssescape( ch, asCodePoint ) {
	if ( asCodePoint ) {

		// U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER
		if ( ch === "\0" ) {
			return "\uFFFD";
		}

		// Control characters and (dependent upon position) numbers get escaped as code points
		return ch.slice( 0, -1 ) + "\\" + ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " ";
	}

	// Other potentially-special ASCII characters get backslash-escaped
	return "\\" + ch;
}

jQuery.escapeSelector = function( sel ) {
	return ( sel + "" ).replace( rcssescape, fcssescape );
};

var sort = arr.sort;

var splice = arr.splice;

var hasDuplicate;

// Document order sorting
function sortOrder( a, b ) {

	// Flag for duplicate removal
	if ( a === b ) {
		hasDuplicate = true;
		return 0;
	}

	// Sort on method existence if only one input has compareDocumentPosition
	var compare = !a.compareDocumentPosition - !b.compareDocumentPosition;
	if ( compare ) {
		return compare;
	}

	// Calculate position if both inputs belong to the same document
	// Support: IE 11+
	// IE sometimes throws a "Permission denied" error when strict-comparing
	// two documents; shallow comparisons work.
	// eslint-disable-next-line eqeqeq
	compare = ( a.ownerDocument || a ) == ( b.ownerDocument || b ) ?
		a.compareDocumentPosition( b ) :

		// Otherwise we know they are disconnected
		1;

	// Disconnected nodes
	if ( compare & 1 ) {

		// Choose the first element that is related to the document
		// Support: IE 11+
		// IE sometimes throws a "Permission denied" error when strict-comparing
		// two documents; shallow comparisons work.
		// eslint-disable-next-line eqeqeq
		if ( a == document || a.ownerDocument == document &&
			jQuery.contains( document, a ) ) {
			return -1;
		}

		// Support: IE 11+
		// IE sometimes throws a "Permission denied" error when strict-comparing
		// two documents; shallow comparisons work.
		// eslint-disable-next-line eqeqeq
		if ( b == document || b.ownerDocument == document &&
			jQuery.contains( document, b ) ) {
			return 1;
		}

		// Maintain original order
		return 0;
	}

	return compare & 4 ? -1 : 1;
}

/**
 * Document sorting and removing duplicates
 * @param {ArrayLike} results
 */
jQuery.uniqueSort = function( results ) {
	var elem,
		duplicates = [],
		j = 0,
		i = 0;

	hasDuplicate = false;

	sort.call( results, sortOrder );

	if ( hasDuplicate ) {
		while ( ( elem = results[ i++ ] ) ) {
			if ( elem === results[ i ] ) {
				j = duplicates.push( i );
			}
		}
		while ( j-- ) {
			splice.call( results, duplicates[ j ], 1 );
		}
	}

	return results;
};

jQuery.fn.uniqueSort = function() {
	return this.pushStack( jQuery.uniqueSort( slice.apply( this ) ) );
};

var i,
	outermostContext,

	// Local document vars
	document$1,
	documentElement$1,
	documentIsHTML,

	// Instance-specific data
	dirruns = 0,
	done = 0,
	classCache = createCache(),
	compilerCache = createCache(),
	nonnativeSelectorCache = createCache(),

	// Regular expressions

	// Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
	rwhitespace = new RegExp( whitespace + "+", "g" ),

	ridentifier = new RegExp( "^" + identifier + "$" ),

	matchExpr = jQuery.extend( {

		// For use in libraries implementing .is()
		// We use this for POS matching in `select`
		needsContext: new RegExp( "^" + whitespace +
			"*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" + whitespace +
			"*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
	}, filterMatchExpr ),

	rinputs = /^(?:input|select|textarea|button)$/i,
	rheader = /^h\d$/i,

	// Easily-parseable/retrievable ID or TAG or CLASS selectors
	rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,

	// Used for iframes; see `setDocument`.
	// Support: IE 9 - 11+
	// Removing the function wrapper causes a "Permission Denied"
	// error in IE.
	unloadHandler = function() {
		setDocument();
	},

	inDisabledFieldset = addCombinator(
		function( elem ) {
			return elem.disabled === true && nodeName( elem, "fieldset" );
		},
		{ dir: "parentNode", next: "legend" }
	);

function find( selector, context, results, seed ) {
	var m, i, elem, nid, match, groups, newSelector,
		newContext = context && context.ownerDocument,

		// nodeType defaults to 9, since context defaults to document
		nodeType = context ? context.nodeType : 9;

	results = results || [];

	// Return early from calls with invalid selector or context
	if ( typeof selector !== "string" || !selector ||
		nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {

		return results;
	}

	// Try to shortcut find operations (as opposed to filters) in HTML documents
	if ( !seed ) {
		setDocument( context );
		context = context || document$1;

		if ( documentIsHTML ) {

			// If the selector is sufficiently simple, try using a "get*By*" DOM method
			// (excepting DocumentFragment context, where the methods don't exist)
			if ( nodeType !== 11 && ( match = rquickExpr.exec( selector ) ) ) {

				// ID selector
				if ( ( m = match[ 1 ] ) ) {

					// Document context
					if ( nodeType === 9 ) {
						if ( ( elem = context.getElementById( m ) ) ) {
							push.call( results, elem );
						}
						return results;

					// Element context
					} else {
						if ( newContext && ( elem = newContext.getElementById( m ) ) &&
							jQuery.contains( context, elem ) ) {

							push.call( results, elem );
							return results;
						}
					}

				// Type selector
				} else if ( match[ 2 ] ) {
					push.apply( results, context.getElementsByTagName( selector ) );
					return results;

				// Class selector
				} else if ( ( m = match[ 3 ] ) && context.getElementsByClassName ) {
					push.apply( results, context.getElementsByClassName( m ) );
					return results;
				}
			}

			// Take advantage of querySelectorAll
			if ( !nonnativeSelectorCache[ selector + " " ] &&
				( !rbuggyQSA || !rbuggyQSA.test( selector ) ) ) {

				newSelector = selector;
				newContext = context;

				// qSA considers elements outside a scoping root when evaluating child or
				// descendant combinators, which is not what we want.
				// In such cases, we work around the behavior by prefixing every selector in the
				// list with an ID selector referencing the scope context.
				// The technique has to be used as well when a leading combinator is used
				// as such selectors are not recognized by querySelectorAll.
				// Thanks to Andrew Dupont for this technique.
				if ( nodeType === 1 &&
					( rdescend.test( selector ) || rleadingCombinator.test( selector ) ) ) {

					// Expand context for sibling selectors
					newContext = rsibling.test( selector ) &&
						testContext( context.parentNode ) ||
						context;

					// Outside of IE, if we're not changing the context we can
					// use :scope instead of an ID.
					// Support: IE 11+
					// IE sometimes throws a "Permission denied" error when strict-comparing
					// two documents; shallow comparisons work.
					// eslint-disable-next-line eqeqeq
					if ( newContext != context || isIE ) {

						// Capture the context ID, setting it first if necessary
						if ( ( nid = context.getAttribute( "id" ) ) ) {
							nid = jQuery.escapeSelector( nid );
						} else {
							context.setAttribute( "id", ( nid = jQuery.expando ) );
						}
					}

					// Prefix every selector in the list
					groups = tokenize( selector );
					i = groups.length;
					while ( i-- ) {
						groups[ i ] = ( nid ? "#" + nid : ":scope" ) + " " +
							toSelector( groups[ i ] );
					}
					newSelector = groups.join( "," );
				}

				try {
					push.apply( results,
						newContext.querySelectorAll( newSelector )
					);
					return results;
				} catch ( qsaError ) {
					nonnativeSelectorCache( selector, true );
				} finally {
					if ( nid === jQuery.expando ) {
						context.removeAttribute( "id" );
					}
				}
			}
		}
	}

	// All others
	return select( selector.replace( rtrimCSS, "$1" ), context, results, seed );
}

/**
 * Mark a function for special use by jQuery selector module
 * @param {Function} fn The function to mark
 */
function markFunction( fn ) {
	fn[ jQuery.expando ] = true;
	return fn;
}

/**
 * Returns a function to use in pseudos for input types
 * @param {String} type
 */
function createInputPseudo( type ) {
	return function( elem ) {
		return nodeName( elem, "input" ) && elem.type === type;
	};
}

/**
 * Returns a function to use in pseudos for buttons
 * @param {String} type
 */
function createButtonPseudo( type ) {
	return function( elem ) {
		return ( nodeName( elem, "input" ) || nodeName( elem, "button" ) ) &&
			elem.type === type;
	};
}

/**
 * Returns a function to use in pseudos for :enabled/:disabled
 * @param {Boolean} disabled true for :disabled; false for :enabled
 */
function createDisabledPseudo( disabled ) {

	// Known :disabled false positives: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable
	return function( elem ) {

		// Only certain elements can match :enabled or :disabled
		// https://html.spec.whatwg.org/multipage/scripting.html#selector-enabled
		// https://html.spec.whatwg.org/multipage/scripting.html#selector-disabled
		if ( "form" in elem ) {

			// Check for inherited disabledness on relevant non-disabled elements:
			// * listed form-associated elements in a disabled fieldset
			//   https://html.spec.whatwg.org/multipage/forms.html#category-listed
			//   https://html.spec.whatwg.org/multipage/forms.html#concept-fe-disabled
			// * option elements in a disabled optgroup
			//   https://html.spec.whatwg.org/multipage/forms.html#concept-option-disabled
			// All such elements have a "form" property.
			if ( elem.parentNode && elem.disabled === false ) {

				// Option elements defer to a parent optgroup if present
				if ( "label" in elem ) {
					if ( "label" in elem.parentNode ) {
						return elem.parentNode.disabled === disabled;
					} else {
						return elem.disabled === disabled;
					}
				}

				// Support: IE 6 - 11+
				// Use the isDisabled shortcut property to check for disabled fieldset ancestors
				return elem.isDisabled === disabled ||

					// Where there is no isDisabled, check manually
					elem.isDisabled !== !disabled &&
						inDisabledFieldset( elem ) === disabled;
			}

			return elem.disabled === disabled;

		// Try to winnow out elements that can't be disabled before trusting the disabled property.
		// Some victims get caught in our net (label, legend, menu, track), but it shouldn't
		// even exist on them, let alone have a boolean value.
		} else if ( "label" in elem ) {
			return elem.disabled === disabled;
		}

		// Remaining elements are neither :enabled nor :disabled
		return false;
	};
}

/**
 * Returns a function to use in pseudos for positionals
 * @param {Function} fn
 */
function createPositionalPseudo( fn ) {
	return markFunction( function( argument ) {
		argument = +argument;
		return markFunction( function( seed, matches ) {
			var j,
				matchIndexes = fn( [], seed.length, argument ),
				i = matchIndexes.length;

			// Match elements found at the specified indexes
			while ( i-- ) {
				if ( seed[ ( j = matchIndexes[ i ] ) ] ) {
					seed[ j ] = !( matches[ j ] = seed[ j ] );
				}
			}
		} );
	} );
}

/**
 * Sets document-related variables once based on the current document
 * @param {Element|Object} [node] An element or document object to use to set the document
 */
function setDocument( node ) {
	var subWindow,
		doc = node ? node.ownerDocument || node : document;

	// Return early if doc is invalid or already selected
	// Support: IE 11+
	// IE sometimes throws a "Permission denied" error when strict-comparing
	// two documents; shallow comparisons work.
	// eslint-disable-next-line eqeqeq
	if ( doc == document$1 || doc.nodeType !== 9 ) {
		return;
	}

	// Update global variables
	document$1 = doc;
	documentElement$1 = document$1.documentElement;
	documentIsHTML = !jQuery.isXMLDoc( document$1 );

	// Support: IE 9 - 11+
	// Accessing iframe documents after unload throws "permission denied" errors (see trac-13936)
	// Support: IE 11+
	// IE sometimes throws a "Permission denied" error when strict-comparing
	// two documents; shallow comparisons work.
	// eslint-disable-next-line eqeqeq
	if ( isIE && document != document$1 &&
		( subWindow = document$1.defaultView ) && subWindow.top !== subWindow ) {
		subWindow.addEventListener( "unload", unloadHandler );
	}
}

find.matches = function( expr, elements ) {
	return find( expr, null, null, elements );
};

find.matchesSelector = function( elem, expr ) {
	setDocument( elem );

	if ( documentIsHTML &&
		!nonnativeSelectorCache[ expr + " " ] &&
		( !rbuggyQSA || !rbuggyQSA.test( expr ) ) ) {

		try {
			return matches.call( elem, expr );
		} catch ( e ) {
			nonnativeSelectorCache( expr, true );
		}
	}

	return find( expr, document$1, null, [ elem ] ).length > 0;
};

jQuery.expr = {

	// Can be adjusted by the user
	cacheLength: 50,

	createPseudo: markFunction,

	match: matchExpr,

	find: {
		ID: function( id, context ) {
			if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
				var elem = context.getElementById( id );
				return elem ? [ elem ] : [];
			}
		},

		TAG: function( tag, context ) {
			if ( typeof context.getElementsByTagName !== "undefined" ) {
				return context.getElementsByTagName( tag );

				// DocumentFragment nodes don't have gEBTN
			} else {
				return context.querySelectorAll( tag );
			}
		},

		CLASS: function( className, context ) {
			if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) {
				return context.getElementsByClassName( className );
			}
		}
	},

	relative: {
		">": { dir: "parentNode", first: true },
		" ": { dir: "parentNode" },
		"+": { dir: "previousSibling", first: true },
		"~": { dir: "previousSibling" }
	},

	preFilter: preFilter,

	filter: {
		ID: function( id ) {
			var attrId = unescapeSelector( id );
			return function( elem ) {
				return elem.getAttribute( "id" ) === attrId;
			};
		},

		TAG: function( nodeNameSelector ) {
			var expectedNodeName = unescapeSelector( nodeNameSelector ).toLowerCase();
			return nodeNameSelector === "*" ?

				function() {
					return true;
				} :

				function( elem ) {
					return nodeName( elem, expectedNodeName );
				};
		},

		CLASS: function( className ) {
			var pattern = classCache[ className + " " ];

			return pattern ||
				( pattern = new RegExp( "(^|" + whitespace + ")" + className +
					"(" + whitespace + "|$)" ) ) &&
				classCache( className, function( elem ) {
					return pattern.test(
						typeof elem.className === "string" && elem.className ||
							typeof elem.getAttribute !== "undefined" &&
								elem.getAttribute( "class" ) ||
							""
					);
				} );
		},

		ATTR: function( name, operator, check ) {
			return function( elem ) {
				var result = jQuery.attr( elem, name );

				if ( result == null ) {
					return operator === "!=";
				}
				if ( !operator ) {
					return true;
				}

				result += "";

				if ( operator === "=" ) {
					return result === check;
				}
				if ( operator === "!=" ) {
					return result !== check;
				}
				if ( operator === "^=" ) {
					return check && result.indexOf( check ) === 0;
				}
				if ( operator === "*=" ) {
					return check && result.indexOf( check ) > -1;
				}
				if ( operator === "$=" ) {
					return check && result.slice( -check.length ) === check;
				}
				if ( operator === "~=" ) {
					return ( " " + result.replace( rwhitespace, " " ) + " " )
						.indexOf( check ) > -1;
				}
				if ( operator === "|=" ) {
					return result === check || result.slice( 0, check.length + 1 ) === check + "-";
				}

				return false;
			};
		},

		CHILD: function( type, what, _argument, first, last ) {
			var simple = type.slice( 0, 3 ) !== "nth",
				forward = type.slice( -4 ) !== "last",
				ofType = what === "of-type";

			return first === 1 && last === 0 ?

				// Shortcut for :nth-*(n)
				function( elem ) {
					return !!elem.parentNode;
				} :

				function( elem, _context, xml ) {
					var cache, outerCache, node, nodeIndex, start,
						dir = simple !== forward ? "nextSibling" : "previousSibling",
						parent = elem.parentNode,
						name = ofType && elem.nodeName.toLowerCase(),
						useCache = !xml && !ofType,
						diff = false;

					if ( parent ) {

						// :(first|last|only)-(child|of-type)
						if ( simple ) {
							while ( dir ) {
								node = elem;
								while ( ( node = node[ dir ] ) ) {
									if ( ofType ?
										nodeName( node, name ) :
										node.nodeType === 1 ) {

										return false;
									}
								}

								// Reverse direction for :only-* (if we haven't yet done so)
								start = dir = type === "only" && !start && "nextSibling";
							}
							return true;
						}

						start = [ forward ? parent.firstChild : parent.lastChild ];

						// non-xml :nth-child(...) stores cache data on `parent`
						if ( forward && useCache ) {

							// Seek `elem` from a previously-cached index
							outerCache = parent[ jQuery.expando ] ||
								( parent[ jQuery.expando ] = {} );
							cache = outerCache[ type ] || [];
							nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
							diff = nodeIndex && cache[ 2 ];
							node = nodeIndex && parent.childNodes[ nodeIndex ];

							while ( ( node = ++nodeIndex && node && node[ dir ] ||

								// Fallback to seeking `elem` from the start
								( diff = nodeIndex = 0 ) || start.pop() ) ) {

								// When found, cache indexes on `parent` and break
								if ( node.nodeType === 1 && ++diff && node === elem ) {
									outerCache[ type ] = [ dirruns, nodeIndex, diff ];
									break;
								}
							}

						} else {

							// Use previously-cached element index if available
							if ( useCache ) {
								outerCache = elem[ jQuery.expando ] ||
									( elem[ jQuery.expando ] = {} );
								cache = outerCache[ type ] || [];
								nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
								diff = nodeIndex;
							}

							// xml :nth-child(...)
							// or :nth-last-child(...) or :nth(-last)?-of-type(...)
							if ( diff === false ) {

								// Use the same loop as above to seek `elem` from the start
								while ( ( node = ++nodeIndex && node && node[ dir ] ||
									( diff = nodeIndex = 0 ) || start.pop() ) ) {

									if ( ( ofType ?
										nodeName( node, name ) :
										node.nodeType === 1 ) &&
										++diff ) {

										// Cache the index of each encountered element
										if ( useCache ) {
											outerCache = node[ jQuery.expando ] ||
												( node[ jQuery.expando ] = {} );
											outerCache[ type ] = [ dirruns, diff ];
										}

										if ( node === elem ) {
											break;
										}
									}
								}
							}
						}

						// Incorporate the offset, then check against cycle size
						diff -= last;
						return diff === first || ( diff % first === 0 && diff / first >= 0 );
					}
				};
		},

		PSEUDO: function( pseudo, argument ) {

			// pseudo-class names are case-insensitive
			// https://www.w3.org/TR/selectors/#pseudo-classes
			// Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
			// Remember that setFilters inherits from pseudos
			var fn = jQuery.expr.pseudos[ pseudo ] ||
				jQuery.expr.setFilters[ pseudo.toLowerCase() ] ||
				selectorError( "unsupported pseudo: " + pseudo );

			// The user may use createPseudo to indicate that
			// arguments are needed to create the filter function
			// just as jQuery does
			if ( fn[ jQuery.expando ] ) {
				return fn( argument );
			}

			return fn;
		}
	},

	pseudos: {

		// Potentially complex pseudos
		not: markFunction( function( selector ) {

			// Trim the selector passed to compile
			// to avoid treating leading and trailing
			// spaces as combinators
			var input = [],
				results = [],
				matcher = compile( selector.replace( rtrimCSS, "$1" ) );

			return matcher[ jQuery.expando ] ?
				markFunction( function( seed, matches, _context, xml ) {
					var elem,
						unmatched = matcher( seed, null, xml, [] ),
						i = seed.length;

					// Match elements unmatched by `matcher`
					while ( i-- ) {
						if ( ( elem = unmatched[ i ] ) ) {
							seed[ i ] = !( matches[ i ] = elem );
						}
					}
				} ) :
				function( elem, _context, xml ) {
					input[ 0 ] = elem;
					matcher( input, null, xml, results );

					// Don't keep the element
					// (see https://github.com/jquery/sizzle/issues/299)
					input[ 0 ] = null;
					return !results.pop();
				};
		} ),

		has: markFunction( function( selector ) {
			return function( elem ) {
				return find( selector, elem ).length > 0;
			};
		} ),

		contains: markFunction( function( text ) {
			text = unescapeSelector( text );
			return function( elem ) {
				return ( elem.textContent || jQuery.text( elem ) ).indexOf( text ) > -1;
			};
		} ),

		// "Whether an element is represented by a :lang() selector
		// is based solely on the element's language value
		// being equal to the identifier C,
		// or beginning with the identifier C immediately followed by "-".
		// The matching of C against the element's language value is performed case-insensitively.
		// The identifier C does not have to be a valid language name."
		// https://www.w3.org/TR/selectors/#lang-pseudo
		lang: markFunction( function( lang ) {

			// lang value must be a valid identifier
			if ( !ridentifier.test( lang || "" ) ) {
				selectorError( "unsupported lang: " + lang );
			}
			lang = unescapeSelector( lang ).toLowerCase();
			return function( elem ) {
				var elemLang;
				do {
					if ( ( elemLang = documentIsHTML ?
						elem.lang :
						elem.getAttribute( "xml:lang" ) || elem.getAttribute( "lang" ) ) ) {

						elemLang = elemLang.toLowerCase();
						return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
					}
				} while ( ( elem = elem.parentNode ) && elem.nodeType === 1 );
				return false;
			};
		} ),

		// Miscellaneous
		target: function( elem ) {
			var hash = window.location && window.location.hash;
			return hash && hash.slice( 1 ) === elem.id;
		},

		root: function( elem ) {
			return elem === documentElement$1;
		},

		focus: function( elem ) {
			return elem === document$1.activeElement &&
				document$1.hasFocus() &&
				!!( elem.type || elem.href || ~elem.tabIndex );
		},

		// Boolean properties
		enabled: createDisabledPseudo( false ),
		disabled: createDisabledPseudo( true ),

		checked: function( elem ) {

			// In CSS3, :checked should return both checked and selected elements
			// https://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
			return ( nodeName( elem, "input" ) && !!elem.checked ) ||
				( nodeName( elem, "option" ) && !!elem.selected );
		},

		selected: function( elem ) {

			// Support: IE <=11+
			// Accessing the selectedIndex property
			// forces the browser to treat the default option as
			// selected when in an optgroup.
			if ( isIE && elem.parentNode ) {
				// eslint-disable-next-line no-unused-expressions
				elem.parentNode.selectedIndex;
			}

			return elem.selected === true;
		},

		// Contents
		empty: function( elem ) {

			// https://www.w3.org/TR/selectors/#empty-pseudo
			// :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5),
			//   but not by others (comment: 8; processing instruction: 7; etc.)
			// nodeType < 6 works because attributes (2) do not appear as children
			for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
				if ( elem.nodeType < 6 ) {
					return false;
				}
			}
			return true;
		},

		parent: function( elem ) {
			return !jQuery.expr.pseudos.empty( elem );
		},

		// Element/input types
		header: function( elem ) {
			return rheader.test( elem.nodeName );
		},

		input: function( elem ) {
			return rinputs.test( elem.nodeName );
		},

		button: function( elem ) {
			return nodeName( elem, "input" ) && elem.type === "button" ||
				nodeName( elem, "button" );
		},

		text: function( elem ) {
			return nodeName( elem, "input" ) && elem.type === "text";
		},

		// Position-in-collection
		first: createPositionalPseudo( function() {
			return [ 0 ];
		} ),

		last: createPositionalPseudo( fu