Function validate

src/pattern/validation/pattern-validation.ts:210–222

* Validates a Cron-Job expression pattern. * * @param {string} pattern The Cron-Job expression pattern. * @returns {void}

(pattern)

 * @returns {void}
 */
function validate(pattern) {
    if (typeof pattern !== 'string')
        throw new TypeError('pattern must be a string!');
    if (!ALLOWED_CHARS_REGEX.test(pattern))
        throw new TypeError('pattern includes illegal characters!');

    const patterns = pattern.split(' ');
    const executablePatterns = convertExpression(pattern);

    if (patterns.length === 5) patterns.unshift('0');

    validateFields(patterns, executablePatterns);
}

export default validate;