Run results for: Coordinate test 4

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36

Browser: Chrome 75

Operating system: Mac OS X 10.14.5

Device Platform: Desktop

Date tested: 4 years ago

Script Preparation code:

var width = 480;
var halfWidth = width >> 1;
var invertedHalfWidth = 1 / halfWidth;

Tests:

Conditional comparison
var xPos = Math.random() * width; var xQuadLeft = xPos < halfWidth ? 0 : 1;
Bitwise comparison
var xPos = Math.random() * width; var diff = xPos ^ halfWidth; diff |= diff >> 1; diff |= diff >> 2; diff |= diff >> 4; diff |= diff >> 8; diff |= diff >> 16; diff &= ~(diff >> 1) | 0x80000000; diff &= (xPos ^ 0x80000000) & (halfWidth ^ 0x7fffffff); var xQuad = !!diff;
Other test
var xPos = Math.random() * width; var xQuad = xPos ^ halfWidth && ( !(halfWidth ^ 0) || ( (xPos / halfWidth) | 0 ) );
Other test 2
var xPos = Math.random() * width; var xQuad = xPos == width ? 1 : ( ( xPos * invertedHalfWidth ) | 0 );
Other test 3
var xPos = Math.random() * width; var xQuad = xPos == width ? 1 : ~~( xPos * invertedHalfWidth );