- 'use strict';
- // `Math.sign` method implementation
- // https://tc39.es/ecma262/#sec-math.sign
- // eslint-disable-next-line es/no-math-sign -- safe
- module.exports = Math.sign || function sign(x) {
- var n = +x;
- // eslint-disable-next-line no-self-compare -- NaN check
- return n === 0 || n !== n ? n : n < 0 ? -1 : 1;
- };
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