node_modules/jszip/node_modules/core-js/modules/_create-property.js

'use strict';
var $defineProperty = require('./_object-dp')
  , createDesc      = require('./_property-desc');

module.exports = function(object, index, value){
  if(index in object)$defineProperty.f(object, index, createDesc(0, value));
  else object[index] = value;
};