Good email regex?

Ionic Framework ionic-v3
1

Does anyone have a good email regex that works in Ionic? Because I am struggling to find one. This is my current one:

^[a-zA-Z0-9._]+[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$

but it accepts some wrong stuff like whatever@gmail

3

I’ve all the validation control on a different service. This is my function

// SINGLE FIELD VALIDATORS

export function emailValidator(control: FormControl): {[key: string]: any} {
  var emailRegexp = /^(([^<>()\[\]\.,;:\s@\"]+(\.[^<>()\[\]\.,;:\s@\"]+)*)|(\".+\"))@(([^<>()[\]\.,;:\s@\"]+\.)+[^<>()[\]\.,;:\s@\"]{2,})$/i;
  if (control.value && !emailRegexp.test(control.value)) {
    return { invalidEmail: true };
  }
}
4

This is what i use:

let EMAIL_REGEXP = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
5

none of them works for me :open_mouth:
they don’t accept my correct address

6

how is this working for you?

I have tested it here:
http://regexr.com/
and it doesn’t work

7

This seems to work fine for me up to now

Validators.pattern("[a-zA-Z0-9\.\_-]{1,}@[a-zA-Z0-9\.\_-]{1,}[a-zA-Z]{2,}")
8

this one is worse than the one I have posted

9

55 PM
55 PM1382×167 17.7 KB

10

this is the same regex as you posted? because it doesn’t look same

11

Yep it’s the same copy pasted from here :slight_smile:

12

but I am copy-pasting it there and it gives no match response

^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$
13

could you please answer?

14

Don’'t know what to tell you just tested again

^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$

16 PM

15

Can you please explain, in what way worse?

16

what the hell, we are both testing the same regex, on same site, and we have different results? how is this possible

17

lol maybe try to test inside your app or use another site ?
https://www.regextester.com/

18

i have found out what was wrong on this site-testing
but still, it doesn’t work in my app, this is weird, i use it like this:

this.signupForm = formBuilder.group({
      email: ['', Validators.compose([Validators.pattern('^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$'), Validators.required])]
    });
19

am i doing this right?

20

Make a custom validator and use it in your page

import {FormControl} from '@angular/forms';

export class EmailValidator {

   static isInvalidEmailFormat(control: FormControl){
        let EMAIL_REGEXP = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;

        if (control.value != "" && (control.value.length <= 5 || !EMAIL_REGEXP.test(control.value))) {
            return { "isInvalidEmailFormat": true };
        }

        return null;
    }

}


email     : ['', Validators.compose([EmailValidator.isInvalidEmailFormat, Validators.required])],
21

with this i have an error that control.value is undefined

edit: nvm i have fixed this, and now to my surprise regex is working as well