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What is the “double tilde” (~~) operator in JavaScript? [duplicate]
...ecause it is not going to be noticed when running the code. Maybe in tests etc, but no human can see a diffrence here. What would be faster is to use ~~ for a faster load time.
Short version
~~ is shorter/takes less space. Math.floor improves the readability. Sometimes tilde is faster, sometimes Mat...
Encode URL in JavaScript?
...nt to encode the whole URL, which doesn't allow characters such as :, /, @ etc. These 2 methods are not to be used interchangeable, you must know what you are encoding to use the right method.
– Buu Nguyen
Mar 6 '13 at 19:32
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Count Rows in Doctrine QueryBuilder
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If you need to count a more complex query, with groupBy, having etc... You can borrow from Doctrine\ORM\Tools\Pagination\Paginator:
$paginator = new \Doctrine\ORM\Tools\Pagination\Paginator($query);
$totalRows = count($paginator);
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Copy folder recursively in node.js
... write functions of fs so it does not copy any meta data (time of creation etc.). As of node 8.5 there is a copyFileSync functions available which call the OS copy functions and therefore also copies meta data. I did not test them yet, but it should work to just replace them. (See https://nodejs.org...
Firebug-like debugger for Google Chrome
...pretty well and has all the same filters as firebug (scripts, xhr, images, etc). I've been using the Dev build for a week and it seems pretty stable. I just finally set my default browser to chrome - now it's my dev browser too! :)
– Mark J Miller
Dec 7 '09 at ...
CSS Cell Margin
...ing as above, avoid any styling of the cells (background colours, borders, etc.) and instead use container DIVs inside the cells to implement such styling.
I am not a CSS expert, so I could well be wrong in the above (which would be great to know! I too would like a table cell margin CSS solution)....
How does java do modulus calculations with negative numbers?
...d rather write r = ((x%n) + n) % n. Concerning power of 2 modulo (2,4,8,16,etc..) and positive answer, consider binary mask r = x & 63.
– Fabyen
Nov 17 '14 at 13:43
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How to get current page URL in MVC 3
...rt - as it would be included in the host header) before any load-balancing etc takes place.
At least, it does in our (rather convoluted!) environment :)
If there are any funky proxies in between that rewrite the host header, then this won't work either.
Update 30th July 2013
As mentioned by @Kev...
Django: ImproperlyConfigured: The SECRET_KEY setting must not be empty
...l need to create a local.py outside of your source repo for your passwords etc.
– Inyoka
Oct 1 '18 at 3:38
Should be t...
What is the best way to call a script from another script?
...e when the script itself is run. There are no functions, classes, methods, etc. I have another script which runs as a service. I want to call test1.py from the script running as a service.
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