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8 lines
297 B
8 lines
297 B
3 years ago
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// `Math.sign` method implementation
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// https://tc39.es/ecma262/#sec-math.sign
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// eslint-disable-next-line es/no-math-sign -- safe
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module.exports = Math.sign || function sign(x) {
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// eslint-disable-next-line no-self-compare -- NaN check
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return (x = +x) == 0 || x != x ? x : x < 0 ? -1 : 1;
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};
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