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- // See test/unit/core.js for details concerning isFunction.
- // Since version 1.3, DOM methods and functions like alert
- // aren't supported. They return false on IE (#2968).
- isFunction: function( obj ) {
- return jQuery.type(obj) === "function";
- },
- isArray: Array.isArray || function( obj ) {
- return jQuery.type(obj) === "array";
- },
- isWindow: function( obj ) {
- /* jshint eqeqeq: false */
- return obj != null && obj == obj.window;
- },
- isNumeric: function( obj ) {
- return !isNaN( parseFloat(obj) ) && isFinite( obj );
- },
- type: function( obj ) {
- if ( obj == null ) {
- return String( obj );
- }
- return typeof obj === "object" || typeof obj === "function" ?
- class2type[ core_toString.call(obj) ] || "object" :
- typeof obj;
- },
- isPlainObject: function( obj ) {
- var key;
- // Must be an Object.
- // Because of IE, we also have to check the presence of the constructor property.
- // Make sure that DOM nodes and window objects don't pass through, as well
- if ( !obj || jQuery.type(obj) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) {
- return false;
- }
- try {
- // Not own constructor property must be Object
- if ( obj.constructor &&
- !core_hasOwn.call(obj, "constructor") &&
- !core_hasOwn.call(obj.constructor.prototype, "isPrototypeOf") ) {
- return false;
- }
- } catch ( e ) {
- // IE8,9 Will throw exceptions on certain host objects #9897
- return false;
- }
- // Support: IE<9
- // Handle iteration over inherited properties before own properties.
- if ( jQuery.support.ownLast ) {
- for ( key in obj ) {
- return core_hasOwn.call( obj, key );
- }
- }
- // Own properties are enumerated firstly, so to speed up,
- // if last one is own, then all properties are own.
- for ( key in obj ) {}
- return key === undefined || core_hasOwn.call( obj, key );
- },
- isEmptyObject: function( obj ) {
- var name;
- for ( name in obj ) {
- return false;
- }
- return true;
- },
- error: function( msg ) {
- throw new Error( msg );
- },
- // data: string of html
- // context (optional): If specified, the fragment will be created in this context, defaults to document
- // keepScripts (optional): If true, will include scripts passed in the html string
- parseHTML: function( data, context, keepScripts ) {
- if ( !data || typeof data !== "string" ) {
- return null;
- }
- if ( typeof context === "boolean" ) {
- keepScripts = context;
- context = false;
- }
- context = context || document;
- var parsed = rsingleTag.exec( data ),
- scripts = !keepScripts && [];
- // Single tag
- if ( parsed ) {
- return [ context.createElement( parsed[1] ) ];
- }
- parsed = jQuery.buildFragment( [ data ], context, scripts );
- if ( scripts ) {
- jQuery( scripts ).remove();
- }
- return jQuery.merge( [], parsed.childNodes );
- },
- parseJSON: function( data ) {
- // Attempt to parse using the native JSON parser first
- if ( window.JSON && window.JSON.parse ) {
- return window.JSON.parse( data );
- }
- if ( data === null ) {
- return data;
- }
- if ( typeof data === "string" ) {
- // Make sure leading/trailing whitespace is removed (IE can't handle it)
- data = jQuery.trim( data );
- if ( data ) {
- // Make sure the incoming data is actual JSON
- // Logic borrowed from http://json.org/json2.js
- if ( rvalidchars.test( data.replace( rvalidescape, "@" )
- .replace( rvalidtokens, "]" )
- .replace( rvalidbraces, "")) ) {
- return ( new Function( "return " + data ) )();
- }
- }
- }
- jQuery.error( "Invalid JSON: " + data );
- },
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