All files / src/implementation object.ts

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
9x
204x
 
 
9x
 
 
 
136x
198x
198x
 
 
 
 
9x
55x
16x
 
 
39x
39x
52x
 
39x
 
 
/**
 * Copyright 2017 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
/**
 * @fileoverview Contains methods for working with objects.
 */
export function contains(obj: Object, prop: string): boolean {
  return Object.prototype.hasOwnProperty.call(obj, prop);
}
 
export function forEach<T>(
  obj: { [key: string]: T },
  f: (p1: string, p2: T) => void
) {
  for (let key in obj) {
    Eif (contains(obj, key)) {
      f(key, obj[key]);
    }
  }
}
 
export function clone<T>(obj?: { [key: string]: any } | null): T {
  if (obj == null) {
    return {} as T;
  }
 
  let c: { [name: string]: any } = {};
  forEach(obj, function(key, val) {
    c[key] = val;
  });
  return c as T;
}