| var baseGet = require('../internal/baseGet'), |
| baseSlice = require('../internal/baseSlice'), |
| isFunction = require('../lang/isFunction'), |
| isKey = require('../internal/isKey'), |
| last = require('../array/last'), |
| toPath = require('../internal/toPath'); |
| |
| /** |
| * This method is like `_.get` except that if the resolved value is a function |
| * it's invoked with the `this` binding of its parent object and its result |
| * is returned. |
| * |
| * @static |
| * @memberOf _ |
| * @category Object |
| * @param {Object} object The object to query. |
| * @param {Array|string} path The path of the property to resolve. |
| * @param {*} [defaultValue] The value returned if the resolved value is `undefined`. |
| * @returns {*} Returns the resolved value. |
| * @example |
| * |
| * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] }; |
| * |
| * _.result(object, 'a[0].b.c1'); |
| * // => 3 |
| * |
| * _.result(object, 'a[0].b.c2'); |
| * // => 4 |
| * |
| * _.result(object, 'a.b.c', 'default'); |
| * // => 'default' |
| * |
| * _.result(object, 'a.b.c', _.constant('default')); |
| * // => 'default' |
| */ |
| function result(object, path, defaultValue) { |
| var result = object == null ? undefined : object[path]; |
| if (result === undefined) { |
| if (object != null && !isKey(path, object)) { |
| path = toPath(path); |
| object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1)); |
| result = object == null ? undefined : object[last(path)]; |
| } |
| result = result === undefined ? defaultValue : result; |
| } |
| return isFunction(result) ? result.call(object) : result; |
| } |
| |
| module.exports = result; |