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Most efficient method to groupby on an array of objects
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answered Jan 20 '16 at 2:02
Ceasar BautistaCeasar Bautista
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Quickly create a large file on a Linux system
...st modern disk based file systems, very fast:
For example:
fallocate -l 10G gentoo_root.img
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Git: Correct way to change Active Branch in a bare repository?
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answered Jul 21 '10 at 17:22
VonCVonC
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Is there a method to generate a UUID with go language
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u[8] = (u[8] | 0x80) & 0xBF // what's the purpose ?
u[6] = (u[6] | 0x40) & 0x4F // what's the purpose ?
These lines clamp the values of byte 6 and 8 to a specific range. rand.Read returns random bytes in the range 0-255, which are...
How can I load storyboard programmatically from class?
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370
In your storyboard go to the Attributes inspector and set the view controller's Identifier. You ...
How to set button click effect in Android?
...ile and call it gradient.xml with the following code:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item>
<bitmap android:src="@drawable/YOURIMAGE"/>
</item>
<item>
<...
How do lexical closures work?
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answered Oct 24 '08 at 14:47
ClaudiuClaudiu
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Is there a bash command which counts files?
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10
I would not use -l, since that requires stat(2) on each file and for the purposes of counting adds nothing.
– camh
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How do I run Asynchronous callbacks in Playground
...ill eventually terminate the playground after a timeout which defaults to 30 seconds, but which can be configured if you open the assistant editor and show the timeline assistant; the timeout is in the lower-right.
For example, in Swift 3 (using URLSession instead of NSURLConnection):
import UIKit...
Why is using 'eval' a bad practice?
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edited Dec 2 '09 at 18:25
answered Dec 2 '09 at 13:37
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