大约有 42,000 项符合查询结果（耗时：0.0510秒） [XML]
Ruby, remove last N characters from a string?
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edited Jul 15 '19 at 8:18
answered Jun 28 '19 at 8:21
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Custom HTTP headers : naming conventions
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edited Oct 14 '19 at 13:15
answered Aug 24 '10 at 22:02
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What is the Swift equivalent of respondsToSelector?
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edited Jul 29 '14 at 1:57
Santa Claus
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How to write LaTeX in IPython Notebook?
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edited Jun 18 '14 at 12:36
katahdin
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answ...
Create space at the beginning of a UITextField
...t {
return bounds.inset(by: padding)
}
override open func editingRect(forBounds bounds: CGRect) -> CGRect {
return bounds.inset(by: padding)
}
}
Swift 4
class TextField: UITextField {
let padding = UIEdgeInsets(top: 0, left: 5, bottom: 0, right: 5)
overri...
How to do a Jquery Callback after form submit?
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edited Dec 31 '13 at 19:30
Norman H
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Unix command-line JSON parser? [closed]
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edited Dec 25 '18 at 3:31
answered Oct 4 '10 at 20:15
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Why use ICollection and not IEnumerable or List on many-many/one-many relationships?
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edited Oct 22 '19 at 21:49
answered Apr 11 '12 at 20:20
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How do I hide a menu item in the actionbar?
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edited Nov 3 '18 at 21:29
Jack Bashford
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How to test if a string is basically an integer in quotes using Ruby
...String
def is_i?
!!(self =~ /\A[-+]?[0-9]+\z/)
end
end
An edited version according to comment from @wich:
class String
def is_i?
/\A[-+]?\d+\z/ === self
end
end
In case you only need to check positive numbers
if !/\A\d+\z/.match(string_to_check)
#Is not a...