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Difference between variable declaration syntaxes in Javascript (including global variables)?
...st a = 0; // 1.2 (new with ES2015)
a = 0; // 2
window.a = 0; // 3
this.a = 0; // 4
Those statements explained
#1 var a = 0;
This creates a global variable which is also a property of the global object, which we access as window on browsers (or via this a global scope, in non-strict...
How to convert enum value to int?
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359
You'd need to make the enum expose value somehow, e.g.
public enum Tax {
NONE(0), SALES(1...
Faster way to develop and test print stylesheets (avoid print preview every time)?
...indows, Linux))
2. Start typing Rendering and select Show Rendering.
3. For the Emulate CSS Media dropdown, select print.
UPDATE 29/02/2016
The DevTools docs have moved and the above link provides inaccurate information. The updated docs regarding Media type emulation can be found here:...
How to get the number of days of difference between two dates on mysql?
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263
What about the DATEDIFF function ?
Quoting the manual's page :
DATEDIFF() returns expr1 –...
Where are the PostgreSQL logs on macOS?
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35
On OS X, if you're using the EnterpriseDB installation of PostgreSQL, your log files will be in...
How to add NERDTree to your .vimrc
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edited Nov 30 '19 at 5:55
the Tin Man
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Why does ReSharper want to use 'var' for everything?
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23 Answers
23
Active
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How do I get the difference between two Dates in JavaScript?
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answered Sep 3 '08 at 15:42
Vincent RobertVincent Robert
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Rounding up to next power of 2
.... You need to get the base 2 logarithm, then add 1 to that. Example for a 32-bit value:
Round up to the next highest power of 2
unsigned int v; // compute the next highest power of 2 of 32-bit v
v--;
v |= v >> 1;
v |= v >> 2;
v |= v >> 4;
v |= v >> 8;
v |= v >> 1...