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Checking for the correct number of arguments
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#!/bin/sh
if [ "$#" -ne 1 ] || ! [ -d "$1" ]; then
echo "Usage: $0 DIRECTORY" >&2
ex...
Difference between variable declaration syntaxes in Javascript (including global variables)?
...l terms they're not usually big ones.
There's a fourth way, and as of ES2015 (ES6) there's two more. I've added the fourth way at the end, but inserted the ES2015 ways after #1 (you'll see why), so we have:
var a = 0; // 1
let a = 0; // 1.1 (new with ES2015)
const a = 0; // 1.2 (new with...
Remove duplicate values from JS array [duplicate]
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What's the meaning of * (asterisk) in XAML ColumnDefinition?
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168
When you define a column in a WPF grid you can set the width to one of three possible values:
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Get the name of the currently executing method
... name as a string, call __method__.to_s instead.
Note: This requires Ruby 1.8.7.
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How to create a drop shadow only on one side of an element?
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Java 8 forEach with index [duplicate]
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170
Since you are iterating over an indexable collection (lists, etc.), I presume that you can the...
How to use > in an xargs command?
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201
Do not make the mistake of doing this:
sh -c "grep ABC {} > {}.out"
This will break under ...
Python 3: UnboundLocalError: local variable referenced before assignment [duplicate]
The following code gives the error UnboundLocalError: local variable 'Var1' referenced before assignment :
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jquery if div id has children
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edited Nov 29 '11 at 18:37
Joseph Silber
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