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Rearrange columns using cut
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152
For the cut(1) man page:
Use one, and only one of -b, -c or -f. Each LIST is made up of ...
Uniq by object attribute in Ruby
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205
Use Array#uniq with a block:
@photos = @photos.uniq { |p| p.album_id }
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In Python, what is the difference between “.append()” and “+= []”?
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12 Answers
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How do you trigger a block after a delay, like -performSelector:withObject:afterDelay:?
... capture those variables from your local scope instead.
int parameter1 = 12;
float parameter2 = 144.1;
// Delay execution of my block for 10 seconds.
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 10 * NSEC_PER_SEC), dispatch_get_main_queue(), ^{
NSLog(@"parameter1: %d parameter2: %f", parame...
Reading a UTF8 CSV file with Python
...s with Python (only French and/or Spanish characters). Based on the Python 2.5 documentation for the csvreader ( http://docs.python.org/library/csv.html ), I came up with the following code to read the CSV file since the csvreader supports only ASCII.
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Check if two linked lists merge. If so, where?
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typeof for RegExp
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edited Nov 27 '18 at 6:34
Alexis Wilke
14.2k77 gold badges5151 silver badges9898 bronze badges
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Can't install PIL after Mac OS X 10.9
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28 Answers
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Is there a way to automate the android sdk installation?
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12 Answers
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