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What does the unary plus operator do?
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It's there to be overloaded if you feel the need; for all predefined types it's essentially a no-op.
The practical uses of a no-op unary arithmetic operator are pretty limited, and tend to relate to the consequences of using a value in an arithmetic expression, rather than the ...
What is the reason for having '//' in Python? [duplicate]
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I actually like this style better... I can remember in atleast one language I've used (VB?) the differentiating factor was / vs \ ... but I could never remember which was which!
– Matthew Scharley
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I change the capitalization of a directory and Git doesn't seem to pick up on it
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You're probably using case insensitive (but case preserving) HFS+. I usually work round this like so:
$ git mv somename tmpname
$ git mv tmpname SomeName
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Check whether an input string contains a number in javascript
... case alphabet, and \d could mean any digit.
From below example
contains_alphaNumeric « It checks for string contains either letter or number (or) both letter and number. The hyphen (-) is ignored.
onlyMixOfAlphaNumeric « It checks for string contain both letters and numbers only of any sequenc...
Get user info via Google API
... could have edited it yourself, but don't worry as I have done it now. For all we know they could have omitted the code define(email, 'email') ;)
– verbumSapienti
Apr 23 '14 at 13:03
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Implicit “Submit” after hitting Done on the keyboard at the last EditText
...o my password, if I hit "Done" on the keyboard, the login form is automatically submitted, without me having to click the submit button. How is this done?
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What is a elegant way in Ruby to tell if a variable is a Hash or an Array?
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Be careful, this could really screw you if someone ends up passing you an instance of ActiveSupport::HashWithIndifferentAccess. Which responds like a hash, but is not in fact a Hash. :(
– unflores
Mar 6 '14 at...
Make header and footer files to be included in multiple html pages
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Yes. all page should have these page structure
– Hariprasad Prolanx
Sep 10 '13 at 7:25
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What are 'get' and 'set' in Swift?
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That's actually explained right before the code:
In addition to simple properties that are stored, properties can have a getter and a setter.
class EquilateralTriangle: NamedShape {
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When some other class wants to get that pe...
How to declare a global variable in php?
...'];
}
From the Manual:
An associative array containing references to all variables which are currently defined in the global scope of the script. The variable names are the keys of the array.
If you have a set of functions that need some common variables, a class with properties may be a g...