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How to run cron job every 2 hours
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edited Jul 14 '18 at 14:09
Mark Amery
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How can I map True/False to 1/0 in a Pandas DataFrame?
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284
A succinct way to convert a single column of boolean values to a column of integers 1 or 0:
df[...
Specify pane percentage in tmuxinator project
...elect-layout. For example:
$ tmux list-windows
0: ksh [159x48]
layout: bb62,159x48,0,0{79x48,0,0,79x48,80,0}
$ tmux select-layout bb62,159x48,0,0{79x48,0,0,79x48,80,0}
tmux automatically adjusts the size of the layout for the current window
size. Note that a lay...
Keep only first n characters in a string?
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547
You are looking for JavaScript's String method substring
e.g.
'Hiya how are you'.substring(0,...
How do I get SUM function in MySQL to return '0' if no values are found?
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4 Answers
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Active
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How to validate an Email in PHP?
...d suffice.
Update 1: As pointed out by @binaryLV:
PHP 5.3.3 and 5.2.14 had a bug related to
FILTER_VALIDATE_EMAIL, which resulted in segfault when validating
large values. Simple and safe workaround for this is using strlen()
before filter_var(). I'm not sure about 5.3.4 final, but it is...
Is MATLAB OOP slow or am I doing something wrong?
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4 Answers
4
Active
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What is the significance of initializing direction arrays below with given values when developing ch
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84
This is a technique to encode all directions as arrays - every pair of di[i],dj[i] is a differen...
C# Thread safe fast(est) counter
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Austin SalonenAustin Salonen
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