/node_modules/babel-polyfill/node_modules/core-js/library/modules/_math-log1p.js

1// 20.2.2.20 Math.log1p(x)
2module.exports = Math.log1p || function log1p(x) {
3  return (x = +x) > -1e-8 && x < 1e-8 ? x - x * x / 2 : Math.log(1 + x);
4};