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Ruby on Rails: How do I add a not null constraint to an existing column using a migration?
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answered Feb 15 '12 at 0:25
Dan WichDan Wich
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Quick Way to Implement Dictionary in C
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10 Answers
10
Active
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Select Row number in postgres
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vyegorovvyegorov
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19
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“Width equals height” constraint in Interface Builder
... can't express the following code in Interface Builder:
CGFloat ratio = 1.0;
NSLayoutConstraint *constraint = [NSLayoutConstraint
constraintWithItem:myView
attribute:NSLayoutAttributeWidth
relatedBy:NSLayoutRelationEqual
toItem:myView
attribute:NSLayoutAttributeHeight
multip...
Aligning UIToolBar items
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answered Mar 2 '09 at 15:42
nduplessisnduplessis
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What is this: [Ljava.lang.Object;?
...list. Here are some examples:
// xxxxx varies
System.out.println(new int[0][0][7]); // [[[I@xxxxx
System.out.println(new String[4][2]); // [[Ljava.lang.String;@xxxxx
System.out.println(new boolean[256]); // [Z@xxxxx
The reason why the toString() method on arrays returns String in this format is ...
How to filter out files by extension in NERDTree?
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301
You want the NERDTreeIgnore option. For example, in your .vimrc:
let NERDTreeIgnore = ['\.pyc$...
JavaScript replace/regex
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edited Jul 22 '09 at 2:43
answered Jul 22 '09 at 1:02
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How to indicate param is optional using inline JSDoc?
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answered Apr 4 '15 at 0:39
czernyczerny
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How do I select child elements of any depth using XPath?
...nhofnwellnhof
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