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How can strings be concatenated?
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183
The easiest way would be
Section = 'Sec_' + Section
But for efficiency, see: https://waymoot...
quick random row selection in Postgres
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98
You might want to experiment with OFFSET, as in
SELECT myid FROM mytable OFFSET floor(random()*...
How many GCC optimization levels are there?
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To be pedantic, there are 8 different valid -O options you can give to gcc, though there are some that mean the same thing.
The original version of this answer stated there were 7 options. GCC has since added -Og to bring the total to 8
From the ma...
How can I use PowerShell with the Visual Studio Command Prompt?
...exe when running the VS2010 Command Prompt. I used to have a nice vsvars2008.ps1 script for Visual Studio 2008. Anyone have a vsvars2010.ps1 or something similar?
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How to multiply duration by integer?
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mnamna
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54
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What is Eclipse's Ctrl+O (Show Outline) shortcut equivalent in IntelliJ IDEA?
... Didier L
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answered Dec 22 '09 at 9:37
Andrzej DoyleAndrzej Doyle
95.5...
LaTeX Optional Arguments
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answered Nov 28 '09 at 10:50
mikumiku
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What column type/length should I use for storing a Bcrypt hashed password in a Database?
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378
The modular crypt format for bcrypt consists of
$2$, $2a$ or $2y$ identifying the hashing algor...
How do I apply a perspective transform to a UIView?
...orm = CATransform3DRotate(rotationAndPerspectiveTransform, 45.0f * M_PI / 180.0f, 0.0f, 1.0f, 0.0f);
layer.transform = rotationAndPerspectiveTransform;
Swift 5.0
if let myView = self.subviews.first {
let layer = myView.layer
var rotationAndPerspectiveTransform = CATransform3DIdentity
...