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Is there a “null coalescing” operator in JavaScript?

...t now supports the nullish coalescing operator (??). It returns its right-hand-side operand when its left-hand-side operand is null or undefined, and otherwise returns its left-hand-side operand. Please check compatibility before using it. The JavaScript equivalent of the C# null coalescing ope...
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Multiple modals overlay

... After seeing many fixes for this, and none of them were exactly what I needed I've came up with a even shorter solution that is inspired by @YermoLamers & @Ketwaroo. Backdrop z-index fix This solution uses a setTimeout because the .modal-backdrop isn't c...
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Why is string concatenation faster than array join?

...owsers have also optimized string concatenation, so Safari, Opera, Chrome, and Internet Explorer 8 also show better performance using the plus operator. Internet Explorer prior to version 8 didn’t have such an optimization, and so the array technique is always faster than the plus operator. ...
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psql: FATAL: Peer authentication failed for user “dev”

...nfig files, especially when you don't have a clue about what you are doing and just following SO answer to solve your problem. – borisano Nov 24 '15 at 15:07 1 ...
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What __init__ and self do on Python?

I'm learning the Python programming language and I've came across something I don't fully understand. 18 Answers ...
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arrow operator (->) in function heading

...declaration:     return-type identifier ( argument-declarations... ) and     auto identifier ( argument-declarations... ) -> return_type They are equivalent. Now when they are equivalent, why do you ever want to use the latter? Well, C++11 introduced this cool decltype thing that lets...
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Cross Browser Flash Detection in Javascript

... With jQuery and swfobject, this is the code I used to add Modernizr-style html class names: $('html').addClass(typeof swfobject !== 'undefined' && swfobject.getFlashPlayerVersion().major !== 0 ? 'flash' : 'no-flash'); ...
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TypeScript with KnockoutJS

...otepad, you would only need the definitions at compile time. On the other hand, one of the good points of typescript is that it is easier for the visual studio (and other editors through plugins) intellisence to understand your code and it helps you much with auto completion and perform type and err...
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How to change a module variable from another module?

Suppose I have a package named bar , and it contains bar.py : 3 Answers 3 ...
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How to enable external request in IIS Express?

...IIS Express. Here is the pertinent part of that post summarized: On Vista and Win7, run the following command from an administrative prompt: netsh http add urlacl url=http://vaidesg:8080/ user=everyone For XP, first install Windows XP Service Pack 2 Support Tools. Then run the following command fro...