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JavaScript closures vs. anonymous functions
A friend of mine and I are currently discussing what is a closure in JS and what isn't. We just want to make sure we really understand it correctly.
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Why is there no tuple comprehension in Python?
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You can use a generator expression:
tuple(i for i in (1, 2, 3))
but parentheses were already taken for … generator expressions.
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How do I use shell variables in an awk script?
I found some ways to pass external shell variables to an awk script, but I'm confused about ' and " .
7 Answers
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The new syntax “= default” in C++11
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A defaulted default constructor is specifically defined as being the same as a user-defined default constructor with no initialization list and an empty compound statement.
§12.1/6 [class.ctor] A default constructor that is defaulted and not defined as deleted is implicitly defined...
How to globally replace a forward slash in a JavaScript string?
How to globally replace a forward slash in a JavaScript string?
10 Answers
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Loop through all nested dictionary values?
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As said by Niklas, you need recursion, i.e. you want to define a function to print your dict, and if the value is a dict, you want to call your print function using this new dict.
Something like :
def myprint(d):
for k, v in d....
Covariance and contravariance real world example
I'm having a little trouble understanding how I would use covariance and contravariance in the real world.
9 Answers
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AWK: Access captured group from line pattern
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That was a stroll down memory lane...
I replaced awk by perl a long time ago.
Apparently the AWK regular expression engine does not capture its groups.
you might consider using something like :
perl -n -e'/test(\d+)/ && print $1'
the -n flag causes perl to loop ove...
How do I clear/delete the current line in terminal?
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You can use Ctrl+U to clear up to the beginning.
You can use Ctrl+W to delete just a word.
You can also use Ctrl+C to cancel.
If you want to keep the history, you can use Alt+Shift+# to make it a comment.
Bash Emacs Editing Mode Cheat Sheet
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Why can't C compilers rearrange struct members to eliminate alignment padding? [duplicate]
Consider the following example on a 32 bit x86 machine:
11 Answers
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