luhn-generator/update/node_modules/core-js-pure/modules/esnext.math.signbit.js

A generator of numbers that passes the validation of Luhn algorithm or Luhn formula, also known as the 'modulus 10' or 'mod 10' algorithm

var $ = require('../internals/export');

// `Math.signbit` method
// https://github.com/tc39/proposal-Math.signbit
$({ target: 'Math', stat: true }, {
  signbit: function signbit(x) {
    return (x = +x) == x && x == 0 ? 1 / x == -Infinity : x < 0;
  }
});