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musix-oss/node_modules/es-abstract/2016/ToUint16.js
2020-03-03 22:30:50 +02:00

25 lines
651 B
JavaScript

'use strict';
var GetIntrinsic = require('../GetIntrinsic');
var $Math = GetIntrinsic('%Math%');
var ToNumber = require('./ToNumber');
var $isNaN = require('../helpers/isNaN');
var $isFinite = require('../helpers/isFinite');
var $sign = require('../helpers/sign');
var $mod = require('../helpers/mod');
var $floor = $Math.floor;
var $abs = $Math.abs;
// http://www.ecma-international.org/ecma-262/5.1/#sec-9.7
module.exports = function ToUint16(value) {
var number = ToNumber(value);
if ($isNaN(number) || number === 0 || !$isFinite(number)) { return 0; }
var posInt = $sign(number) * $floor($abs(number));
return $mod(posInt, 0x10000);
};