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javascript Programming Glossary: instanceofObject comparison in JavaScript [duplicate] http://stackoverflow.com/questions/1068834/object-comparison-in-javascript iframes if typeof x 'function' typeof y 'function' x instanceof Date y instanceof Date x instanceof RegExp y instanceof RegExp.. x 'function' typeof y 'function' x instanceof Date y instanceof Date x instanceof RegExp y instanceof RegExp x instanceof String.. typeof y 'function' x instanceof Date y instanceof Date x instanceof RegExp y instanceof RegExp x instanceof String y instanceof..
How to “properly” create a custom object in JavaScript? http://stackoverflow.com/questions/1595611/how-to-properly-create-a-custom-object-in-javascript native you can get there is a minimum of overhead code and instanceof will work with instances of this kind of object. function Shape.. function function Class if this instanceof Class throw 'Constructor called without new ' ... Maybe you.. gets lost. Also because there is no inheritance here the instanceof operator won't work you would have to provide your own mechanism..
Is JavaScript 's “new” Keyword Considered Harmful? [closed] http://stackoverflow.com/questions/383402/is-javascript-s-new-keyword-considered-harmful keyword this will silently correct the problem... if this instanceof foo return new foo constructor logic follows... Now you can.. use the check to introduce a runtime exception if this instanceof arguments.callee throw new Error Constructor called as a function..
Most elegant way to clone a JavaScript object http://stackoverflow.com/questions/728360/most-elegant-way-to-clone-a-javascript-object null obj object typeof obj return obj Handle Date if obj instanceof Date var copy new Date copy.setTime obj.getTime return copy.. copy.setTime obj.getTime return copy Handle Array if obj instanceof Array var copy for var i 0 len obj.length i len i copy i clone.. i copy i clone obj i return copy Handle Object if obj instanceof Object var copy for var attr in obj if obj.hasOwnProperty attr..
Can jQuery get all CSS styles associated with an element? http://stackoverflow.com/questions/754607/can-jquery-get-all-css-styles-associated-with-an-element o function css2json css var s if css return s if css instanceof CSSStyleDeclaration for var i in css if css i .toLowerCase..
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