const regex = /^\h*(?:(?:\*|[0-9]+)\/0*(?:[0-4]))(?:\s+\*){4}/gm;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('^\\h*(?:(?:\\*|[0-9]+)\\\/0*(?:[0-4]))(?:\\s+\\*){4}', 'gm')
const str = `2,5,8,27,30,36,12,15,18,21,24,39,42 * * * * /bin/echo 0
5,5,8,27,30,36,12,15,18,21,24,39,42 * * * * /bin/echo 0
200,5,8,27,30,36,12,15,18,21,24,39,42 * * * * /bin/echo 0
27,30,36,12,15,18,21,24,39,42 * * * * /bin/echo 0
*/16 * * * * /bin/echo 0
*/13 * * * * /bin/echo 0
*/4 * * * * /bin/echo 0
*/2 * * * * /bin/echo 0
*/3 * * * * /bin/echo 0
110,5,8,27,30,36,12,15,18,21,24,39,42 * * * * /bin/echo 0
`;
// Reset `lastIndex` if this regex is defined globally
// regex.lastIndex = 0;
let m;
while ((m = regex.exec(str)) !== null) {
// This is necessary to avoid infinite loops with zero-width matches
if (m.index === regex.lastIndex) {
regex.lastIndex++;
}
// The result can be accessed through the `m`-variable.
m.forEach((match, groupIndex) => {
console.log(`Found match, group ${groupIndex}: ${match}`);
});
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for JavaScript, please visit: https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/Regular_Expressions