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Linking static libraries to other static libraries
... .o files that contain them. This is difficult, time consuming and error prone. I'm not aware of any tools to help do this (not to say they don't exist), but it would make quite an interesting project to produce one.
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Null coalescing in powershell
... for your first C# expression of:
var s = myval ?? "new value";
becomes one of the following (depending on preference):
$s = if ($myval -eq $null) { "new value" } else { $myval }
$s = if ($myval -ne $null) { $myval } else { "new value" }
or depending on what $myval might contain you could use:...
Can hash tables really be O(1)?
...ash tables can achieve O(1), but that has never made sense to me. Can someone please explain it? Here are two situations that come to mind:
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How to update a single library with Composer?
... for production, but can take a bit of time to run so it is currently not done by default.
--lock: Only updates the lock file hash to suppress warning about the lock file being out of date.
--with-dependencies: Add also all dependencies of whitelisted packages to the whitelist.
--prefer-stable: Pref...
What is the purpose of Android's tag in XML layouts?
... merge tag isn't necessary in this example but that's only because there's one element in layout2. If layout2 had multiple elements, then it MUST have a root node to be valid XML and that's when the merge tag comes in handy.
– gMale
Feb 22 '14 at 16:37
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Difference between ActionBarSherlock and ActionBar Compatibility
...oing to use it's own custom implementation of the action bar, not a native one.
--EDIT--
It appears things have changed and there is actually no difference between ActionBarSherlock and the Action Bar Compatibility anymore. Please read the comments below for details.
--EDIT--
After having used b...
Split a string by another string in C#
...BROWNxxFOX";
return data.Split(new string[] { "xx" }, StringSplitOptions.None);
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vs
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In HTML5, they are equivalent. Use the shorter one, it is easier to remember and type. Browser support is fine since it was designed for backwards compatibility.
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Convert a Unix timestamp to time in JavaScript
... numbers far more efficiently than strings. When string concatenation is done, there's a lot of memory management going on in the background. (However, if you're already doing a string concatenation anyway, then including a few extra characters in one of the strings might actually be less costly o...
PHP Warning: PHP Startup: Unable to load dynamic library
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It means there is an extension=... or zend_extension=... line in one of your php configuration files (php.ini, or another close to it) that is trying to load that extension : ixed.5.2.lin
Unfortunately that file or path doesn't exist or the permissions are incorrect.
Try to search in th...