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Cost of len() function
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360
It's O(1) (constant time, not depending of actual length of the element - very fast) on every ...
how to get first three characters of an NSString?
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3 Answers
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fastest MD5 Implementation in JavaScript
...formant javascript.
http://www.webreference.com/programming/javascript/jkm3/
His MD5 implementation can be found here
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Difference between `mod` and `rem` in Haskell
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183
They're not the same when the second argument is negative:
2 `mod` (-3) == -1
2 `rem` (-3) =...
How to append multiple values to a list in Python
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384
You can use the sequence method list.extend to extend the list by multiple values from any kin...
range over interface{} which stores a slice
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jQuery map vs. each
...you can potentially waste a lot of memory.
For example:
var items = [1,2,3,4];
$.each(items, function() {
alert('this is ' + this);
});
var newItems = $.map(items, function(i) {
return i + 1;
});
// newItems is [2,3,4,5]
You can also use the map function to remove an item from an array. F...
Get type of all variables
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JamesJames
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RegEx - Match Numbers of Variable Length
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135
{[0-9]+:[0-9]+}
try adding plus(es)
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in_array multiple values
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answered Sep 24 '11 at 23:51
Mark ElliotMark Elliot
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