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Home/ Questions/Q 6355321
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Editorial Team
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Editorial Team
Asked: May 24, 20262026-05-24T22:44:28+00:00 2026-05-24T22:44:28+00:00

I have this regex [a-z0-9]*@metu\.edu which checks user input userside, using HTML5. I want

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I have this regex [a-z0-9]*@metu\.edu which checks user input userside, using HTML5. I want to accept a dot (.) within the username, only a single dot. Such as: herp.derp@metu.edu

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  1. Editorial Team
    Editorial Team
    2026-05-24T22:44:29+00:00Added an answer on May 24, 2026 at 10:44 pm

    use below

    ^[a-z0-9]+[.]?[a-z0-9]+@metu\.edu$
    

    DEMO

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