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How do I test if a variable is a number in Bash?
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How to draw border around a UILabel?
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You can set label's border via its underlying CALayer property:
#import <QuartzCore/Quartz...
How to secure MongoDB with username and password
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You need to start mongod with the --auth option after setting up the user.
From the MongoDB Si...
How to determine if binary tree is balanced?
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How do you get the width and height of a multi-dimensional array?
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You use Array.GetLength with the index of the dimension you wish to retrieve.
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How to change plot background color?
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Use the set_facecolor(color) method of the axes object, which you've created one of the follow...
How does Python manage int and long?
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int and long were "unified" a few versions back. Before that it was possible to overflow an int...
Painless way to install a new version of R?
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edited May 8 '19 at 2:46
Gregor Thomas
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Setting the selected value on a Django forms.ChoiceField
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answered Mar 20 '09 at 9:04
TomTom
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Regex to match string containing two names in any order
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You can do checks using lookarounds:
^(?=.*\bjack\b)(?=.*\bjames\b).*$
Test it.
This appro...