source: trip-planner-front/node_modules/extend-shallow/index.js@ 6a3a178

Last change on this file since 6a3a178 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

  • Property mode set to 100644
File size: 1.2 KB
Line 
1'use strict';
2
3var isExtendable = require('is-extendable');
4var assignSymbols = require('assign-symbols');
5
6module.exports = Object.assign || function(obj/*, objects*/) {
7 if (obj === null || typeof obj === 'undefined') {
8 throw new TypeError('Cannot convert undefined or null to object');
9 }
10 if (!isObject(obj)) {
11 obj = {};
12 }
13 for (var i = 1; i < arguments.length; i++) {
14 var val = arguments[i];
15 if (isString(val)) {
16 val = toObject(val);
17 }
18 if (isObject(val)) {
19 assign(obj, val);
20 assignSymbols(obj, val);
21 }
22 }
23 return obj;
24};
25
26function assign(a, b) {
27 for (var key in b) {
28 if (hasOwn(b, key)) {
29 a[key] = b[key];
30 }
31 }
32}
33
34function isString(val) {
35 return (val && typeof val === 'string');
36}
37
38function toObject(str) {
39 var obj = {};
40 for (var i in str) {
41 obj[i] = str[i];
42 }
43 return obj;
44}
45
46function isObject(val) {
47 return (val && typeof val === 'object') || isExtendable(val);
48}
49
50/**
51 * Returns true if the given `key` is an own property of `obj`.
52 */
53
54function hasOwn(obj, key) {
55 return Object.prototype.hasOwnProperty.call(obj, key);
56}
57
58function isEnum(obj, key) {
59 return Object.prototype.propertyIsEnumerable.call(obj, key);
60}
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