@newdash/newdash/result.js

javascript/typescript utility library

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const castPath_1 = __importDefault(require("./.internal/castPath"));
const toKey_1 = __importDefault(require("./.internal/toKey"));
/**
 * 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.
 *
 * @since 0.1.0
 * @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 for `undefined` resolved values.
 * @returns {*} Returns the resolved value.
 * @example
 *
 * const object = { 'a': [{ 'b': { 'c1': 3, 'c2': () => 4 } }] }
 *
 * result(object, 'a[0].b.c1')
 * // => 3
 *
 * result(object, 'a[0].b.c2')
 * // => 4
 *
 * result(object, 'a[0].b.c3', 'default')
 * // => 'default'
 *
 * result(object, 'a[0].b.c3', () => 'default')
 * // => 'default'
 */
function result(object, path, defaultValue) {
    path = (0, castPath_1.default)(path, object);
    let index = -1;
    let length = path.length;
    // Ensure the loop is entered when path is empty.
    if (!length) {
        length = 1;
        object = undefined;
    }
    while (++index < length) {
        let value = object == null ? undefined : object[(0, toKey_1.default)(path[index])];
        if (value === undefined) {
            index = length;
            value = defaultValue;
        }
        object = typeof value === "function" ? value.call(object) : value;
    }
    return object;
}
exports.default = result;