1// Copyright 2022 Google LLC
 2//
 3// Licensed under the Apache License, Version 2.0 (the "License");
 4// you may not use this file except in compliance with the License.
 5// You may obtain a copy of the License at
 6//
 7//     https://www.apache.org/licenses/LICENSE-2.0
 8//
 9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15export function randomId() {
16  return Math.random().toString(36).slice(2)
17}
18
19export function isString(obj: any) {
20  return typeof obj === 'string'
21}
22
23export const asArray = <T>(value: T[] | T | undefined): T[] =>
24  value ? (Array.isArray(value) ? value : [value]) : []