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var assignValue = require('./_assignValue'),    castPath = require('./_castPath'),    isIndex = require('./_isIndex'),    isObject = require('./isObject'),    toKey = require('./_toKey');
/** * The base implementation of `_.set`. * * @private * @param {Object} object The object to modify. * @param {Array|string} path The path of the property to set. * @param {*} value The value to set. * @param {Function} [customizer] The function to customize path creation. * @returns {Object} Returns `object`. */function baseSet(object, path, value, customizer) {  if (!isObject(object)) {    return object;  }  path = castPath(path, object);
  var index = -1,      length = path.length,      lastIndex = length - 1,      nested = object;
  while (nested != null && ++index < length) {    var key = toKey(path[index]),        newValue = value;
    if (index != lastIndex) {      var objValue = nested[key];      newValue = customizer ? customizer(objValue, key, nested) : undefined;      if (newValue === undefined) {        newValue = isObject(objValue)          ? objValue          : (isIndex(path[index + 1]) ? [] : {});      }    }    assignValue(nested, key, newValue);    nested = nested[key];  }  return object;}
module.exports = baseSet;