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What is ?= in Makefile
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130
?= indicates to set the KDIR variable only if it's not set/doesn't have a value.
For example:
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UICollectionView spacing margins
...-> UIEdgeInsets {
return UIEdgeInsets(top: 25, left: 15, bottom: 0, right: 5)
}
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Static member functions error; How to properly write the signature?
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edited Feb 6 '17 at 17:03
jjxtra
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Sending a message to nil in Objective-C
As a Java developer who is reading Apple's Objective-C 2.0 documentation: I wonder what " sending a message to nil " means - let alone how it is actually useful. Taking an excerpt from the documentation:
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Is short-circuiting logical operators mandated? And evaluation order?
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edited Sep 23 '11 at 15:07
answered Mar 10 '09 at 0:37
Al...
Aligning rotated xticklabels with their respective xticks
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209
You can set the horizontal alignment of ticklabels, see the example below. If you imagine a rec...
How to pass parameters to a partial view in ASP.NET MVC?
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edited Oct 29 '13 at 15:01
Michał Powaga
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Pick a random element from an array
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print(array.randomElement()!) // Using ! knowing I have array.count > 0
If you don't create the array and aren't guaranteed count > 0, you should do something like:
if let randomElement = array.randomElement() {
print(randomElement)
}
Swift 4.1 and below
Just to answer your questi...
How to get the first word of a sentence in PHP?
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$myvalue = 'Test me more';
$arr = explode(' ',trim($myvalue));
echo $arr[0]; // will print Test
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Rails filtering array of objects by attribute value
...html#method-i-partition
– Vlad
Jun 20 '16 at 21:04
Thanks @Vlad, thats cool, but it support only if we need to collect...