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Return a `struct` from a function in C
Today I was teaching a couple of friends how to use C struct s. One of them asked if you could return a struct from a function, to which I replied: "No! You'd return pointers to dynamically malloc ed struct s instead."
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Launch an app on OS X with command line
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This worked and allowed me to set a zsh alias for Chromium. Thanks
– jamescampbell
Sep 3 '15 at 0:47
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Python json.loads shows ValueError: Extra data
... answered Jan 11 '14 at 5:39
falsetrufalsetru
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How to sparsely checkout only one single file from a git repository?
How do I checkout just one file from a git repo?
21 Answers
21
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How to reset Jenkins security settings from the command line?
Is there a way to reset all (or just disable the security settings) from the command line without a user/password as I have managed to completely lock myself out of Jenkins ?
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What's the correct way to convert bytes to a hex string in Python 3?
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Since Python 3.5 this is finally no longer awkward:
>>> b'\xde\xad\xbe\xef'.hex()
'deadbeef'
and reverse:
>>> bytes.fromhex('deadbeef')
b'\xde\xad\xbe\xef'
works also with the mutable bytearray type.
Reference: https://docs.p...
A semantics for Bash scripts?
...$ 'echo' foo
foo
$ "echo" foo
foo
Substring expansion
$ fail='echoes'
$ set -x # So we can see what's going on
$ "${fail:0:-2}" Hello World
+ echo Hello World
Hello World
For more on expansions, read the Parameter Expansion section of the manual. It's quite powerful.
Integers and arithmetic ex...
How does one remove an image in Docker?
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edited Mar 23 '15 at 16:05
Anthony
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Access lapply index names inside FUN
...whole thing into a large matrix when I only wanted to a simple list apply. Setting it to F (inside the mapply()) made it run as intended.
– JJJ
Apr 25 '19 at 17:15
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changing source on html5 video tag
...ementById('video');
var source = document.createElement('source');
source.setAttribute('src', 'http://www.tools4movies.com/trailers/1012/Kill%20Bill%20Vol.3.mp4');
video.appendChild(source);
video.play();
setTimeout(function() {
video.pause();
source.setAttribute('src', 'http://www.too...