javascript: regex pattern

Question

I am looking for a regex that matches the string consisting of zero or more specified special characters(. and _ ) with at least 2 alphanumerics.

I tried using /[a-zA-Z._]{2,}&/

But that is failing for Eg _. - failed to check at least 2 alphanumerics.

Expectation is -

.sds_erc - return True,

.e__u. - return True,

._u_ - return False

Amadan · Accepted Answer · 2018-11-22 10:17:42Z

1

/^[._]*(?:[a-zA-Z][._]*){2,}/

Any number of specials, as a prefix. Then, at least two alphanumerics followed by any number of specials.

answered Nov 22, 2018 at 10:17

Amadan

199k23 gold badges252 silver badges321 bronze badges

Sign up to request clarification or add additional context in comments.

1 Answer 1