Created
March 28, 2012 21:44
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A second example of #bit operator
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| window.onload = function(){ | |
| Compass = { North:131, South:56, West:224, Est:14 }; | |
| var move = function(step) { | |
| dir = []; | |
| var pow = Math.pow( 2, step); | |
| if ( pow & Compass.North ) dir.push('North'); | |
| if ( pow & Compass.South ) dir.push('South'); | |
| if ( pow & Compass.Est ) dir.push('Est' ); | |
| if ( pow & Compass.West ) dir.push('West' ); | |
| document.write( step + ': ' + dir.join(' ') + '<br/>' ); | |
| } | |
| move( 0 ); | |
| move( 1 ); | |
| move( 2 ); | |
| move( 3 ); | |
| move( 4 ); | |
| move( 5 ); | |
| move( 6 ); | |
| move( 7 ); | |
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>Bit operator</title> | |
| <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> | |
| </head> | |
| <body> | |
| <script type="text/javascript" src="direction.js"></script> | |
| <body> | |
| </html> |
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