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“Width equals height” constraint in Interface Builder
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Update Xcode 5.1b5
Ctrl+click and drag from a view and release while the pointer is over the view. Select "Aspect Ratio". It will create a constraint where the first and second item is the view.
Before Xcode 5.1
You can't because t...
How to delete multiple values from a vector?
...tor like: a = c(1:10) and I need to remove multiple values, like: 2, 3, 5
8 Answers
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How can I get the current network interface throughput statistics on Linux/UNIX? [closed]
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15 Answers
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Get value of dynamically chosen class constant in PHP
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185
$id = constant("ThingIDs::$thing");
http://php.net/manual/en/function.constant.php
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Open a file from Cygwin
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answered Feb 23 '09 at 13:51
erichuierichui
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How to get the last element of an array in Ruby?
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205
Use -1 index (negative indices count backward from the end of the array):
a[-1] # => 5
b[-1]...
Join an Array in Objective-C
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275
NSArray *array1 = [NSArray arrayWithObjects:@"1", @"2", @"3", nil];
NSString *joinedString = [a...
Map and Reduce in .NET
...inq then you don’t need to write your own map and reduce functions. C# 3.5 and Linq already has it albeit under different names.
Map is Select:
Enumerable.Range(1, 10).Select(x => x + 2);
Reduce is Aggregate:
Enumerable.Range(1, 10).Aggregate(0, (acc, x) => acc + x);
Filter is Where:
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Why can't I center with margin: 0 auto?
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5 Answers
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