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What is the difference between async.waterfall and async.series
The nodejs async module: https://github.com/caolan/async provides 2 similar methods, async.waterfall and async.series .
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How do I query using fields inside the new PostgreSQL JSON datatype?
...g for some docs and/or examples for the new JSON functions in PostgreSQL 9.2.
3 Answers
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How to load a tsv file into a Pandas DataFrame?
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edited Feb 18 '19 at 5:21
Arayan Singh
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How to append the output to a file?
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215
Use >> to append:
command >> file
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What is the apply function in Scala?
... compose method on f and chaining two different functions together:
val f2 = f.compose((x:Int) => x - 1)
Now if we want to actually execute the function, or as mathematician say "apply a function to its arguments" we would call the apply method on the Function1[Int,Int] object:
f2.apply(2)
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How can I profile Python code line-by-line?
...cProfile to profile my code, and it's been working great. I also use gprof2dot.py to visualize the results (makes it a little clearer).
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How to concatenate twice with the C preprocessor and expand a macro as in “arg ## _ ## MACRO”?
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2 Answers
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How can I list ALL grants a user received?
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142
If you want more than just direct table grants (e.g., grants via roles, system privileges such a...
Which concurrent Queue implementation should I use in Java?
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community wiki
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What's a redirect URI? how does it apply to iOS app for OAuth2.0?
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Read this:
http://www.quora.com/OAuth-2-0/How-does-OAuth-2-0-work
or an even simpler but quick explanation:
http://agileanswer.blogspot.se/2012/08/oauth-20-for-my-ninth-grader.html
The redirect URI is the callback entry point of the app. Think about how OAuth ...