Need help to find regex for Email validation.

Question

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I am trying to validate an email using following:

var reg = /^\w+([-+.']\w+)*@@\w+([-.]\w+)*\.\w+([-.]\w+)*$/;

but i dont want the email that starts with a digit.
what should i add in the above regex.
please help.

Posted 7-Apr-15 0:57am

dirtyshooter

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Comments

[no name] 7-Apr-15 7:09am

start with a digit mean ?

Andy Lanng 7-Apr-15 7:16am

/d is a digit in this case ([0-9])

4 solutions

Solution 1

If you want to exclude digit from the first letter, then put this at the front of your regex pattern,

^[^\d]

The first ^ means the start of the string, the second ^ in the square brackets means to exclude, \d means matching a digit.
Learn more: http://www.w3schools.com/jsref/jsref_obj_regexp.asp[^]

Posted 7-Apr-15 1:26am

Peter Leow

Updated 7-Apr-15 1:29am

v4

Comments

dirtyshooter 8-Apr-15 5:57am

no it dint work.

Peter Leow 8-Apr-15 6:43am

In the first place, you original Regex for email is not correct. Check the demo here => https://regex101.com/r/nV2kM0/1

dirtyshooter 8-Apr-15 7:25am

working for me. except for the conditions i want. can you suggest how shall i integrate your expression into mine.?

Peter Leow 8-Apr-15 7:30am

What expression? You have only given one line of code that did not work. I have already provided the answer to your question. If you want to write the code, check out the various methods in the link that I have provided in Solution 1. I hereby considered this question answered.

Solution 2

Add \D to the front of the regex string: "\d" is a digit, \d is anything but a digit.

But more likely, you want to add [A-Za-z] instead, to restrict it to just an upper or lower case character.

Posted 7-Apr-15 1:29am

OriginalGriff

Solution 3

Hi,

Write like this..

JavaScript

var reg = /^[a-z][a-zA-Z0-9_](.[a-zA-Z][a-zA-Z0-9_])?@[a-z][a-zA-Z-0-9]*.[a-z]+(.[a-z]+)?$/;

Demo : Exclude digit from email starting

Posted 7-Apr-15 1:59am

RajeeshMenoth

Comments

dirtyshooter 8-Apr-15 7:38am

thanks RajeeshMenoth. That helped.

dirtyshooter 8-Apr-15 7:42am

but its working in jsfiddle only, not in my project.

[no name] 8-Apr-15 23:53pm

k,it's working in jsfiddle.so you can add the jquery version latest in your project.check ur project i think some other issue will stop the working of jsfiddle code like juqery conflicts.it's working fine for my projects..pls check and clarify me Mr Abhinav2201.

dirtyshooter 9-Apr-15 4:51am

the solution derived by me is working fine for me. Your logic helped. Thanks a lot.

[no name] 9-Apr-15 5:02am

kk, no probs.my solution is working fine for me..

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dirtyshooter · Accepted Answer · 2015-04-08T01:51:00

Solution 4

this worked perfectly. thanks everyone.

var reg = /^[a-z]+[a-zA-Z0-9]*([-+.']\w+)*@@\w+([-.]\w+)*\.\w+([-.]\w+)*$/;

Posted 8-Apr-15 1:51am

dirtyshooter