22 lines
587 B
JavaScript
22 lines
587 B
JavaScript
|
'use strict';
|
||
|
|
|
||
|
|
var modulo = require('./modulo');
|
||
|
|
var ToNumber = require('./ToNumber');
|
||
|
|
var truncate = require('./truncate');
|
||
|
|
|
||
|
|
var isFinite = require('../helpers/isFinite');
|
||
|
|
|
||
|
|
// https://262.ecma-international.org/14.0/#sec-touint32
|
||
|
|
|
||
|
|
var two32 = 0x100000000; // Math.pow(2, 32);
|
||
|
|
|
||
|
|
module.exports = function ToUint32(argument) {
|
||
|
|
var number = ToNumber(argument);
|
||
|
|
if (!isFinite(number) || number === 0) {
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
var int = truncate(number);
|
||
|
|
var int32bit = modulo(int, two32);
|
||
|
|
return int32bit === 0 ? 0 : int32bit; // in the spec, these are math values, so we filter out -0 here
|
||
|
|
};
|