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How to get random value out of an array?
I have an array called $ran = array(1,2,3,4);
20 Answers
20
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UILongPressGestureRecognizer gets called twice when pressing down
I am detecting if the user has pressed down for 2 seconds:
7 Answers
7
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When to use lambda, when to use Proc.new?
... Ruby breaks the much-vaunted Principle of Least Surprise:
def whowouldwin2
myproc = Proc.new {return "Freddy"}
myproc.call
# myproc gets called and returns "Freddy",
# but also returns control from whowhouldwin2!
# The line below *never* gets executed.
return "Jason"
end
whowoul...
What are the effects of exceptions on performance in Java?
... }
// Could in theory throw one, but never will
public void method2(int i) throws Exception {
value = ((value + i) / i) << 1;
// Will never be true
if ((i & 0xFFFFFFF) == 1000000000) {
throw new Exception();
}
}
// This one will...
Why do we need argc while there is always a null at the end of argv?
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Yes, argv[argc]==NULL is guaranteed. See C11 5.1.2.2.1 Program startup (my emphasis)
If they are declared, the parameters to the main function shall obey
the following constraints:
The value of argc shall be nonnegative.
argv[argc] shall be a null
pointer.
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static files with express.js
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102
express.static() expects the first parameter to be a path of a directory, not a filename. I wou...
Git, fatal: The remote end hung up unexpectedly
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Why does the C++ map type argument require an empty constructor when using []?
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baydabayda
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Where do I find old versions of Android NDK? [closed]
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192
Looks like you can construct the link to the NDK that you want and download it from dl.google.co...