| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| |
| // helper functions for select controls |
| |
| export type Formattable = string | number; |
| |
| export type Formatted = [Formattable, string]; |
| |
| /** Turns an array of string/number options into options for a select input */ |
| export function formatSelectOptions<T extends Formattable>( |
| options: (T | [T, string])[], |
| ): [T, string][] { |
| return options.map(opt => (Array.isArray(opt) ? opt : [opt, opt.toString()])); |
| } |
| |
| /** |
| * Outputs array of arrays |
| * >> formatSelectOptionsForRange(1, 5) |
| * >> [[1,'1'], [2,'2'], [3,'3'], [4,'4'], [5,'5']] |
| */ |
| export function formatSelectOptionsForRange(start: number, end: number) { |
| const options: Formatted[] = []; |
| for (let i = start; i <= end; i += 1) { |
| options.push([i, i.toString()]); |
| } |
| return options; |
| } |