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When to use dynamic vs. static libraries
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305
Static libraries increase the size of the code in your binary. They're always loaded and whate...
In C++, what is a “namespace alias”?
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answered Jul 31 '09 at 8:55
community wiki
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How can a time function exist in functional programming?
...kell.
Prelude> System.Time.getClockTime >>= print
Fri Sep 2 01:13:23 東京 (標準時) 2011
So, conceptually, you can view it in this way: A pure functional program does not perform any I/O, it defines an action, which the runtime system then executes. The action is the same every time...
How to perform Callbacks in Objective-C
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Jon HessJon Hess
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What are C++ functors and their uses?
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1053
A functor is pretty much just a class which defines the operator(). That lets you create objects...
What's the difference between a proc and a lambda in Ruby?
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An example:
p = Proc.new {|a, b| puts a**2+b**2 } # => #<Proc:0x3c7d28@(irb):1>
p.call 1, 2 # => 5
p.call 1 # => NoMethodError: undefined method `**' for nil:NilClass
p.call 1, 2, 3 # => 5
l = lambda {|a, b| puts a**2+b**2 } # => #<Proc:0x15016c@(irb):5 (lambda)>
l.ca...
When to use ' (or quote) in Lisp?
... passed to it are evaluated. This means you can write this:
(* (+ a 2)
3)
Which in turn evaluates (+ a 2), by evaluating a and 2. The value of the symbol a is looked up in the current variable binding set, and then replaced. Say a is currently bound to the value 3:
(let ((a 3))
(* (+ a 2)
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How to calculate time elapsed in bash script?
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answered Jan 17 '12 at 23:44
Daniel Kamil KozarDaniel Kamil Kozar
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How to set a Timer in Java?
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edited Apr 8 '19 at 21:23
Yassin Hajaj
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answered ...
Pass in an array of Deferreds to $.when()
Here's an contrived example of what's going on: http://jsfiddle.net/adamjford/YNGcm/20/
9 Answers
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