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What regex will match every character except comma ',' or semi-colon ';'?
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answered Sep 11 '09 at 5:41
Mehrdad AfshariMehrdad Afshari
379k8383 gold badges822822 silver badges775775 bronze badges
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Check for array not empty: any?
...to empty? ?
– RocketR
Nov 17 '12 at 0:00
13
@RocketR you might want to checkout present? method.
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Skip rows during csv import pandas
...'t want to import the 2nd row of the data file (the row with index = 1 for 0-indexing).
6 Answers
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How do I convert seconds to hours, minutes and seconds?
...gt;> import datetime
>>> str(datetime.timedelta(seconds=666))
'0:11:06'
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How to convert a string or integer to binary in Ruby?
How do you create integers 0..9 and math operators + - * / in to binary strings.
For example:
6 Answers
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Draw in Canvas by finger, Android
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+200
Start By going through the Fingerpaint demo in the sdk sample.
Another Sample:
public class MainActivity extends Activity {
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Drawable image on a canvas
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edited Dec 15 '18 at 12:07
answered Apr 8 '14 at 8:36
Gá...
What characters are valid for JavaScript variable names?
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What is the preferred/idiomatic way to insert into a map?
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edited Nov 26 '10 at 18:37
user229044♦
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Mod of negative number is melting my brain
...ould write it as
int mod(int x, int m) {
int r = x%m;
return r<0 ? r+m : r;
}
or variants thereof.
The reason it works is that "x%m" is always in the range [-m+1, m-1]. So if at all it is negative, adding m to it will put it in the positive range without changing its value modulo m.
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