state-trooper/perf/node_modules/core-js/library/modules/_redefine-all.js

Application State Manager

var hide = require('./_hide');
module.exports = function(target, src, safe){
  for(var key in src){
    if(safe && target[key])target[key] = src[key];
    else hide(target, key, src[key]);
  } return target;
};