6 lines
239 B
JavaScript
6 lines
239 B
JavaScript
// `Math.sign` method implementation
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// https://tc39.github.io/ecma262/#sec-math.sign
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module.exports = Math.sign || function sign(x) {
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// eslint-disable-next-line no-self-compare
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return (x = +x) == 0 || x != x ? x : x < 0 ? -1 : 1;
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};
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