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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...
How can I correctly prefix a word with “a” and “an”?
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Download Wikipedia
Unzip it and write a quick filter program that spits out only article text (the download is generally in XML format, along with non-article metadata too).
Find all instances of a(n).... and make an index on the following word and all ...
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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Using Pairs or 2-tuples in Java [duplicate]
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I think it would be better to declare x and y as public final and get rid of those getters.
– user168237
Nov 10 '10 at 3:35
51
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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 should I put in a meteor .gitignore file?
...essing the .meteor dir has a combination of configuration files (needed) and temporary files (not needed).
15 Answers
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Intercept page exit event
... page within my system, a user might decide to navigate to another website and in doing so could lose all the edits they have not saved.
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Multiple modals overlay
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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...
Streaming video from Android camera to server
I've seen plenty of info about how to stream video from the server to an android device, but not much about the other way, ala Qik. Could someone point me in the right direction here, or give me some advice on how to approach this?
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