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How to replace a character with a newline in Emacs?
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+1 for mentioning C-o! One less key stroke compared to C-q C-j. Hadn't thought of using that one before.
– itsjeyd
Apr 9 '14 at 9:53
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Removing array item by value
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It can be accomplished with a simple one-liner.
Having this array:
$arr = array('nice_item', 'remove_me', 'another_liked_item', 'remove_me_also');
You can do:
$arr = array_diff($arr, array('remove_me', 'remove_me_also'));
And the value of $arr will be:
a...
Add a space (“ ”) after an element using :after
...ace between the text in this, and the preceding element, this will not add one. A normal space will just collapse into itself.
– mheim
Jul 22 '15 at 15:57
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How to get .app file of a xcode application
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i need to install some supporting components with that .app file. Thats why i have created installer package. but that install every thing except .app file. How to install that .app file? I got that accetpted mark.
– Shakti
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How do I encode and decode a base64 string?
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@SverrirSigmundarson - Why do a null check? He's not the one dereferencing the input string. Null checks should prevent NullReferenceException in your own code, not somebody else's.
– ken
Feb 2 '15 at 18:44
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Fastest way to replace NAs in a large data.table
...atrix as big as the whole of dt1, a few times. The other 2 methods work on one column at a time (although I only briefly looked at NAToUnknown).
EDIT (more elegant solution as requested by Ramnath in comments) :
f_dowle2 = function(DT) {
for (i in names(DT))
DT[is.na(get(i)), (i):=0]
}
syst...
How do I find out if first character of a string is a number?
...tion. startsWith does not have this problem.
To make the entire condition one line and avoid length checks, you can alter the regexes to the following:
s.matches("\\d.*")
// or the equivalent
s.matches("[0-9].*")
If the condition does not appear in a tight loop in your program, the small perform...
How to add a “readonly” attribute to an ?
...the jQuery API for .prop, this should be the accepted answer. I'd always done .attr('readonly', 'readonly') and .removeAttr('readonly') in the past, but this seems to be more correct and makes the code cleaner as well.
– evan w
Sep 27 '12 at 0:47
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How to modify Github pull request？
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Is possible to add commits to this pull request by someone other, except the author of this pull request?
– skywinder
Jul 15 '14 at 7:33
5
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CMake: Print out all accessible variables in a script
... This does not print out all available libraries, only the cached ones.
– rafalcieslak
Jan 16 '16 at 13:03
2
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