Javascript regex repeated capturing group

Question

I ma trying to match following exact format: '7b3bda24-31db-44d4-aa7f-7012b3594623' but without success.

var reg = new RegExp('/^([a-f0-9]{8})-(([a-f0-9]{4})-){3}([a-f0-9]{12})$/i');

document.getElementById('result').innerHTML = reg.test('7b3bda24-31db-44d4-aa7f-7012b3594623')

<p id="result"></p>

Replace (([a-f0-9]{4})-){3} with ([a-f0-9]{4})-([a-f0-9]{4})- — zer00ne
– zer00ne, Commented Sep 12, 2022 at 19:31
It is either var reg = new RegExp(/^([a-f0-9]{8})-(([a-f0-9]{4})-){3}([a-f0-9]{12})$/i); or var reg = new RegExp('^([a-f0-9]{8})-(([a-f0-9]{4})-){3}([a-f0-9]{12})$', 'i'); — The fourth bird
– The fourth bird, Commented Sep 12, 2022 at 20:15

Unmitigated · Accepted Answer · 2022-09-12 19:26:38Z

3

The RegExp constructor accepts a string regular expression (no slashes). If your regular expression is not dynamic, just use a regular expression literal.

const reg = /^([a-f0-9]{8})-(([a-f0-9]{4})-){3}([a-f0-9]{12})$/i;
console.log(reg.test('7b3bda24-31db-44d4-aa7f-7012b3594623'));

answered Sep 12, 2022 at 19:26

Unmitigated

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