Files
htwkalender/frontend/src/helpers/strings.ts
2024-04-02 11:47:47 +02:00

25 lines
1.2 KiB
TypeScript

//Calendar implementation for the HTWK Leipzig timetable. Evaluation and display of the individual dates in iCal format.
//Copyright (C) 2024 HTWKalender support@htwkalender.de
//This program is free software: you can redistribute it and/or modify
//it under the terms of the GNU Affero General Public License as published by
//the Free Software Foundation, either version 3 of the License, or
//(at your option) any later version.
//This program is distributed in the hope that it will be useful,
//but WITHOUT ANY WARRANTY; without even the implied warranty of
//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
//GNU Affero General Public License for more details.
//You should have received a copy of the GNU Affero General Public License
//along with this program. If not, see <https://www.gnu.org/licenses/>.
/**
* Returns false only if the input argument is a string which contains characters that are not considered a whitespace
* @param str - The string to check for whitespace
* @returns boolean - true if the string contains only whitespace, false otherwise
*/
export function onlyWhitespace(str: string): boolean {
return !str || str.length === 0 || /^\s*$/.test(str);
}