4 * Copyright 2016 RIFT.IO Inc
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
20 const TEMPLATE
= 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx';
21 export default function guid(len
= TEMPLATE
.length
) {
22 // http://byronsalau.com/blog/how-to-create-a-guid-uuid-in-javascript/
23 return TEMPLATE
.replace(/[xy]/g, function (c
) {
24 var r
= Math
.random() * 16 | 0, v
= c
=== 'x' ? r
: (r
& 0x3 | 0x8);
25 return v
.toString(16);