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Postgresql SELECT if string contains
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You should use 'tag_name' outside of quotes; then its interpreted as a field of the record. Co...
Mathematical functions in Swift
... easily discover your playground platform by opening File Inspector (⌥⌘1).
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Throttling method calls to M requests in N seconds
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14 Answers
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Read user input inside a loop
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107
Read from the controlling terminal device:
read input </dev/tty
more info: http://compgr...
JavaScript - get the first day of the week from current date
...he fastest way to get the first day of the week. For example: today is the 11th of November, and a Thursday; and I want the first day of this week, which is the 8th of November, and a Monday. I need the fastest method for MongoDB map function, any ideas?
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Number of elements in a javascript object
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Although JS implementations might keep track of such a value internally, there's no standard w...
How do I add a path to PYTHONPATH in virtualenv
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You can usually avoid having to do anything with PYTHONPATH by using .pth files. Just put a fi...
Can I make 'git diff' only the line numbers AND changed file names?
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Hexadecimal To Decimal in Shell Script
... to do it in the shell or with an external program:
With bash:
$ echo $((16#FF))
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with bc:
$ echo "ibase=16; FF" | bc
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with perl:
$ perl -le 'print hex("FF");'
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with printf :
$ printf "%d\n" 0xFF
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with python:
$ python -c 'print(int("FF", 16))'
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with ruby:
$ ruby -e '...