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2.53 kBJavaScriptView Raw
1/**
2 * @license
3 * Copyright Google LLC All Rights Reserved.
4 *
5 * Use of this source code is governed by an MIT-style license that can be
6 * found in the LICENSE file at https://angular.io/license
7 */
8import { global } from '../util/global';
9/**
10 * Creates an instance of a `Proxy` and creates with an empty target object and binds it to the
11 * provided handler.
12 *
13 * The reason why this function exists is because IE doesn't support
14 * the `Proxy` class. For this reason an error must be thrown.
15 */
16export function createProxy(handler) {
17 const g = global;
18 if (!g.Proxy) {
19 throw new Error('Proxy is not supported in this browser');
20 }
21 return new g.Proxy({}, handler);
22}
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