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20 lines
626 B
Plaintext
20 lines
626 B
Plaintext
'use strict';
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var ToNumber = require('./ToNumber');
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var $isNaN = require('math-intrinsics/isNaN');
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var $isFinite = require('math-intrinsics/isFinite');
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var $sign = require('math-intrinsics/sign');
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var abs = require('math-intrinsics/abs');
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var floor = require('math-intrinsics/floor');
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var modulo = require('math-intrinsics/mod');
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// https://262.ecma-international.org/6.0/#sec-touint8
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module.exports = function ToUint8(argument) {
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var number = ToNumber(argument);
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if ($isNaN(number) || number === 0 || !$isFinite(number)) { return 0; }
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var posInt = $sign(number) * floor(abs(number));
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return modulo(posInt, 0x100);
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};
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