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How to find a hash key containing a matching value
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answered Sep 25 '10 at 13:43
Daniel VandersluisDaniel Vandersluis
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Git submodule add: “a git directory is found locally” issue
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edited Jan 3 '19 at 1:50
answered Mar 3 '16 at 16:48
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e.printStackTrace equivalent in python
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answered Mar 4 '12 at 13:15
ThiefMasterThiefMaster
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Easy way to test a URL for 404 in PHP?
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edited Jan 3 '09 at 1:25
answered Jan 3 '09 at 0:56
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How to read environment variables in Scala
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237
Since Scala 2.9 you can use sys.env for the same effect:
scala> sys.env("HOME")
res0: Strin...
Reading a delimited string into an array in Bash
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339
In order to convert a string into an array, please use
arr=($line)
or
read -a arr <<...
Send POST Request with Data Specified in File via Curl
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378
You're looking for the --data-binary argument:
curl -i -X POST host:port/post-file \
-H "Co...
Rails nested form with has_many :through, how to edit attributes of join model?
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3 Answers
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Convert floating point number to a certain precision, and then copy to string
I have a floating point number, say 135.12345678910 . I want to concatenate that value to a string, but only want 135.123456789 . With print, I can easily do this by doing something like:
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