/node_modules/babel-polyfill/node_modules/core-js/library/modules/_replacer.js

1module.exports = function (regExp, replace) {
2  var replacer = replace === Object(replace) ? function (part) {
3    return replace[part];
4  } : replace;
5  return function (it) {
6    return String(it).replace(regExp, replacer);
7  };
8};