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Setting PATH environment variable in OSX permanently
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what i did not realize was that i was using zsh instead of bash. thanks!
– Lioness
May 25 at 0:13
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How to write to a JSON file in the correct format
... you can use
File.write("public/temp.json",tempHash.to_json)
other than what mentioned in other answers, in ruby 1.8 you can also use one liner form
File.open("public/temp.json","w"){ |f| f.write tempHash.to_json }
sha...
pandas three-way joining multiple dataframes on columns
...ut them in a list like this (generated via list comprehensions or loops or whatnot):
dfs = [df0, df1, df2, dfN]
Assuming they have some common column, like name in your example, I'd do the following:
df_final = reduce(lambda left,right: pd.merge(left,right,on='name'), dfs)
That way, your code ...
Disable IPython Exit Confirmation
...arted using "Quit" key combination.
Ctrl+\
or
Ctrl+4
This just kills what is running. No time to ask questions on confirmation.
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How to parse JSON in Java
...t was downvoted because it doesn't answer the original poster's question: "What is the required code?" The answers that were upvoted provided code snippets.
– jewbix.cube
Apr 27 '15 at 21:40
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How do I comment in CoffeeScript? “/* this */” doesn't work
In what ways can you comment in CoffeeScript?
3 Answers
3
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Utilizing multi core for tar+gzip/bzip compression/decompression
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You can also use the tar flag "--use-compress-program=" to tell tar what compression program to use.
For example use:
tar -c --use-compress-program=pigz -f tar.file dir_to_zip
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Getting “unixtime” in Java
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What is the difference between Instant.now().getEpochSecond() , new Date().getTime() and System.currentTimeMillis()
– SohamC
Mar 2 '16 at 11:26
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composer: How to find the exact version of a package?
...nd then find the tag with the nearest date before that, to really find out what "version" you are using
– andrewtweber
Feb 3 '16 at 19:39
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PowerShell and the -contains operator
...dows", "PowerShell" -Contains "Shell"
False #Not an exact match
I think what you want is the -Match operator:
"12-18" -Match "-"
Which returns True.
Important: As pointed out in the comments and in the linked documentation, it should be noted that the -Match operator uses regular expressions ...