math-sign.js 239 B

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