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Get number of digits with JavaScript
...thematically. For positive integers there is a wonderful algorithm with log10:
var length = Math.log(number) * Math.LOG10E + 1 | 0; // for positive integers
For all types of integers (including negatives) there is a brilliant optimised solution from @Mwr247, but be careful with using Math.log10,...
Array slicing in Ruby: explanation for illogical behaviour (taken from Rubykoans.com)
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How to compare two dates?
...>> present - datetime(2000, 4, 4)
datetime.timedelta(4242, 75703, 762105)
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How to initialize all members of an array to the same value?
...'s no easy way.
Don't overlook the obvious solution, though:
int myArray[10] = { 5, 5, 5, 5, 5, 5, 5, 5, 5, 5 };
Elements with missing values will be initialized to 0:
int myArray[10] = { 1, 2 }; // initialize to 1,2,0,0,0...
So this will initialize all elements to 0:
int myArray[10] = { 0 }...
In C++, is it still bad practice to return a vector from a function?
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answered Jun 28 '10 at 17:55
Peter AlexanderPeter Alexander
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Test if string is a number in Ruby on Rails
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answered Apr 14 '11 at 10:13
Jakob SJakob S
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How to set selected item of Spinner by value, not by position?
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answered Nov 19 '10 at 18:18
MerrillMerrill
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Get the date (a day before current time) in Bash
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answered Nov 10 '09 at 10:17
ghostdog74ghostdog74
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Print array to a file
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edited Apr 13 '10 at 10:43
answered Apr 13 '10 at 10:36
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Look up all descendants of a class in Ruby
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edited Apr 26 '12 at 10:57
answered Mar 6 '10 at 19:04
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