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Why use symbols as hash keys in Ruby?
...ashed keys" against each other.
Long answer:
https://web.archive.org/web/20180709094450/http://www.reactive.io/tips/2009/01/11/the-difference-between-ruby-symbols-and-strings
http://www.randomhacks.net.s3-website-us-east-1.amazonaws.com/2007/01/20/13-ways-of-looking-at-a-ruby-symbol/
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What are the differences between Chosen and Select2?
...ect2).
– notacouch
Jun 10 '13 at 17:20
It should be noted though that Select2 doesn't have a fallback when Javascript ...
What's default HTML/CSS link color?
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209
As of HTML5, the foreground colors of hyperlinks, among other things, are on track for standar...
Best practices for SQL varchar column length [closed]
...r(8000).
See this link (posted by Erwin Brandstetter as a comment)
Edit 2013-09-22
Regarding bigown's comment:
In Postgres versions before 9.2 (which was not available when I wrote the initial answer) a change to the column definition did rewrite the whole table, see e.g. here. Since 9.2 this ...
How can I clear previous output in Terminal in Mac OS X?
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1120
To clear the terminal manually:
⌘+K
Command+K for newer keyboards
To clear the terminal fr...
Implementation difference between Aggregation and Composition in Java
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answered Sep 14 '12 at 20:13
AnandAnand
17.7k4141 gold badges113113 silver badges181181 bronze badges
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6个变态的C语言Hello World程序 - 创意 - 清泛网 - 专注C/C++及内核技术
...fine __ ______ _(0x48)_(0x65)_(0x6C)_(0x6C)
#define ___ _(0x6F)_(0x2C)_(0x20)_(0x77)_(0x6F)
#define ____ _(0x72)_(0x6C)_(0x64)_(0x21)
#define _____ __ ___ ____ _________
#include<stdio.h>
_____
hello2.c
#include<stdio.h>
main(){
int x=0,y[14],*z=&y;*(z++)=0x48;*(z++)=y[x++]+0x1...
LINQ to Entities case sensitive comparison
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Oct 1 '10 at 22:15
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How to add a downloaded .box file to Vagrant?
...e-url
– Brad Parks
Nov 17 '16 at 14:20
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