123456789101112131415161718192021222324252627282930
import _isArray from './_isArray.js';import _isInteger from './_isInteger.js';
/** * Makes a shallow clone of an object, applying the given fn to the specified * property with the given value. Note that this copies and flattens prototype * properties onto the new object as well. All non-primitive properties are * copied by reference. * * @private * @param {String|Number} prop The property name to set * @param {Function} fn The function to apply to the property * @param {Object|Array} obj The object to clone * @return {Object|Array} A new object equivalent to the original except for the changed property. */export default function _modify(prop, fn, obj) {  if (_isInteger(prop) && _isArray(obj)) {    var arr = [].concat(obj);    arr[prop] = fn(arr[prop]);    return arr;  }
  var result = {};  for (var p in obj) {    result[p] = obj[p];  }  result[prop] = fn(result[prop]);  return result;}