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“Width equals height” constraint in Interface Builder
I can't find a way to create a 'square' constraint, meaning 'width equals height' in Interface Builder. I guess it's possible to add such constraint programmatically. Is there something I can do in IB? Maybe I just don't see it? It seems trivial, yet I can't find it.
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Declaring Multiple Variables in JavaScript
In JavaScript, it is possible to declare multiple variables like this:
17 Answers
17
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Is there a /dev/null on Windows?
... at least within a command prompt or batch files.
For example:
type c:\autoexec.bat > NUL
doesn't create a file.
(I believe the same is true if you try to create a file programmatically, but I haven't tried it.)
In PowerShell, you want $null:
echo 1 > $null
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How to delete a file from SD card?
I am creating a file to send as an attachment to an email. Now I want to delete the image after sending the email. Is there a way to delete the file?
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What does the comma operator , do?
What does the , operator do in C?
8 Answers
8
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How to correctly require a specific commit in Composer so that it would be available for dependent p
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You'll have to explicitly require the Gaufrette library at that hash, with a dev flag, in both your library and your application. Something like this should work in the application composer.json:
{
"name": "bar/bar-app",
"reposi...
Can I get Memcached running on a Windows (x64) 64bit environment?
...ced distro with clustering, web-based admin/stats UI etc. (I'm not related to them in any way) Check it out at http://northscale.com/products/memcached.html and download at: http://www.northscale.com/download.php?a=d
UPDATE 2: NorthScale Memcached is no longer available as a standalone download. No...
CSS :after not adding content to certain elements
...trouble understanding the behavior of the CSS :after property. According to the spec ( here and here ):
3 Answers
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Coalesce function for PHP?
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There is a new operator in php 5.3 which does this: ?:
// A
echo 'A' ?: 'B';
// B
echo '' ?: 'B';
// B
echo false ?: 'B';
// B
echo null ?: 'B';
Source: http://www.php.net/ChangeLog-5.php#5.3.0
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how to specify local modules as npm package dependencies
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npm install now supports this
npm install --save ../path/to/mymodule
For this to work mymodule must be configured as a module with its own package.json. See Creating NodeJS modules.
As of npm 2.0, local dependencies are supported natively. See danilopopeye's answer to a similar ...