gistfile1.js

// Create type-related methods:
// isArray, isBoolean, isDate, isFunction, isObject, isNumber, isRegExp, isString and type
jQuery.isFunction = jQuery.noop;
jQuery.each( "Array Boolean Date Function Object Number RegExp String ".split(" "), function( lName, name ) {
	lName = class2type[ "[object " + name + "]" ] = name.toLowerCase();
	jQuery[ name ? ( "is" + name ) : "type" ] = nativeTypeTests[ name ] || function( value ) {
		value = value == null ?
			String( value ) :
			class2type[ toString.call( value ) ] || "object";
		return name ? ( value === lName ) : value;
	};
});