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What is the difference between string primitives and String objects in JavaScript?

... JavaScript has two main type categories, primivites and objects. var s = 'test'; var ss = new String('test'); The single quote/double quote patterns are identical in terms of functionality. That aside, the behaviour you ar...
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How can I create and style a div using JavaScript?

How can I use JavaScript to create and style (and append to the page) a div, with content? I know it's possible, but how? 9...
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Javascript - Open a given URL in a new tab by clicking a button

... In javascript you can do: window.open(url, "_blank"); share | improve this answer | follow ...
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Is it possible to create a “weak reference” in javascript?

Is there any way in javascript to create a "weak reference" to another object? Here is the wiki page describing what a weak reference is. Here is another article that describes them in Java. Can anyone think of a way to implement this behavior in javascript? ...
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How to parse JSON to receive a Date object in JavaScript?

... seconds-from-Unix-epoch number, or something else that you can use in the JavaScript to construct a Date. share | improve this answer | follow | ...
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Does Javascript pass by reference? [duplicate]

Does Javascript pass by references or pass by values? Here is an example from Javascript: The Good Parts . I am very confused about my parameter for the rectangle function. It is actually undefined , and redefined inside the function. There are no original reference. If I remove it from the func...
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How do I escape a single quote ( ' ) in JavaScript? [duplicate]

...amp;quot;ex1")' />"; ... That being said, you could just use JavaScript quotes: document.getElementById("something").innerHTML = "<img src='something' onmouseover='change(\"ex1\")' />"; share |...
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Does JavaScript have a built in stringbuilder class?

... I just rechecked the performance on http://jsperf.com/javascript-concat-vs-join/2. The test-cases concatenate or join the alphabet 1,000 times. In current browsers (FF, Opera, IE11, Chrome), "concat" is about 4-10 times faster than "join". In IE8, both return about equal resul...
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Why does JavaScript only work after opening developer tools in IE once?

IE9 Bug - JavaScript only works after opening developer tools once. 12 Answers 12 ...
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How is AngularJS different from jQuery

...ular2 cli tool can help you "pre-compile" your code and generate necessary javascript code (tree-shaking) to shrink the download size down to 35Kish. Angular2 emulated Shadow DOM. (ref) This opens a door for server rendering that can address SEO issue and work with Nativescript etc that don't ...