Revisions to How can I validate an email address in JavaScript?

add image test

Source Link

edited Jul 25, 2022 at 14:53

36
2
7

Regex update 2018updated! try this

let val = '[email protected]';
if(/^[a-z0-9][a-z0-9-_\.]+@([a-z]|[a-z0-9]?[a-z0-9-]+[a-z0-9])\.[a-z0-9]{2,10}(?:\.[a-z]{2,10})?$/.test(val)) {
   console.log('passed');
}

typscript version complete

//
export const emailValid = (val:string):boolean => /^[a-z0-9][a-z0-9-_\.]+@([a-z]|[a-z0-9]?[a-z0-9-]+[a-z0-9])\.[a-z0-9]{2,10}(?:\.[a-z]{2,10})?$/.test(val);

more info https://git.io/vhEfc

Regex update 2018! try this

let val = '[email protected]';
if(/^[a-z0-9][a-z0-9-_\.]+@([a-z]|[a-z0-9]?[a-z0-9-]+[a-z0-9])\.[a-z0-9]{2,10}(?:\.[a-z]{2,10})?$/.test(val)) {
   console.log('passed');
}

typscript version complete

//
export const emailValid = (val:string):boolean => /^[a-z0-9][a-z0-9-_\.]+@([a-z]|[a-z0-9]?[a-z0-9-]+[a-z0-9])\.[a-z0-9]{2,10}(?:\.[a-z]{2,10})?$/.test(val);

more info https://git.io/vhEfc

Regex updated! try this

let val = '[email protected]';
if(/^[a-z0-9][a-z0-9-_\.]+@([a-z]|[a-z0-9]?[a-z0-9-]+[a-z0-9])\.[a-z0-9]{2,10}(?:\.[a-z]{2,10})?$/.test(val)) {
   console.log('passed');
}

typscript version complete

//
export const emailValid = (val:string):boolean => /^[a-z0-9][a-z0-9-_\.]+@([a-z]|[a-z0-9]?[a-z0-9-]+[a-z0-9])\.[a-z0-9]{2,10}(?:\.[a-z]{2,10})?$/.test(val);

more info https://git.io/vhEfc

fix regex link

Source Link

edited Aug 7, 2018 at 14:08

Juan Pablo

36
2
7

Regex update 2018! try this

let val = '[email protected]';
if(/^[a-z0-9][a-z0-9-_\.]+@[a]+@([a-z]|[a-z0-9][a9]?[a-z0-9-]+[a-z0-9]\9])\.[a-z0-9]{2,10}(?:\.[a-z]{2,10})?$/.test(val)) {
   console.log('passed');
}

typscript version complete

//more info https://git.io/vhEfc
export const emailValid = (val:string):boolean => !/(\.{2}|-{2}|_{2})/.test(val) && /^[a-z0-9][a-z0-9-_\.]+@[a]+@([a-z]|[a-z0-9][a9]?[a-z0-9-]+[a-z0-9]\9])\.[a-z]z0-9]{2,10}(?:\.[a-z]{2,10})?$/.test(val);

more info https://git.io/vhEfc

Regex update 2018! try this

let val = '[email protected]';
if(/^[a-z0-9][a-z0-9-_\.]+@[a-z0-9][a-z0-9-]+[a-z0-9]\.[a-z0-9]{2,10}(?:\.[a-z]{2,10})?$/.test(val)) {
   console.log('passed');
}

typscript version complete

//more info https://git.io/vhEfc
export const emailValid = (val:string):boolean => !/(\.{2}|-{2}|_{2})/.test(val) && /^[a-z0-9][a-z0-9-_\.]+@[a-z0-9][a-z0-9-]+[a-z0-9]\.[a-z]{2,10}(?:\.[a-z]{2,10})?$/.test(val);

Regex update 2018! try this

let val = '[email protected]';
if(/^[a-z0-9][a-z0-9-_\.]+@([a-z]|[a-z0-9]?[a-z0-9-]+[a-z0-9])\.[a-z0-9]{2,10}(?:\.[a-z]{2,10})?$/.test(val)) {
   console.log('passed');
}

typscript version complete

//
export const emailValid = (val:string):boolean => /^[a-z0-9][a-z0-9-_\.]+@([a-z]|[a-z0-9]?[a-z0-9-]+[a-z0-9])\.[a-z0-9]{2,10}(?:\.[a-z]{2,10})?$/.test(val);

more info https://git.io/vhEfc

improvements

Source Link

edited Jun 11, 2018 at 14:26

Juan Pablo

36
2
7

Regex update 2018! try this

Regex update 2018! try this

let val = '[email protected]';
if(/^[a-z0-9][a-z0-9-_\.]+@[a-z0-9][a-z0-9-]+[a-z0-9]\.[a-z0-9]{2,10}(?:\.[a-z]{2,10})?$/.test(val)) {
   console.log('passed');
}

more tests heretypscript version complete

//more info https://git.io/vhEfc
export const emailValid = (val:string):boolean => !/(\.{2}|-{2}|_{2})/.test(val) && /^[a-z0-9][a-z0-9-_\.]+@[a-z0-9][a-z0-9-]+[a-z0-9]\.[a-z]{2,10}(?:\.[a-z]{2,10})?$/.test(val);

Regex update 2018! try this

if(/^[a-z0-9][a-z0-9-_\.]+@[a-z0-9][a-z0-9-]+[a-z0-9]\.[a-z0-9]{2,10}(?:\.[a-z]{2,10})?$/.test(val)) {
   console.log('passed');
}

more tests here

Regex update 2018! try this

let val = '[email protected]';
if(/^[a-z0-9][a-z0-9-_\.]+@[a-z0-9][a-z0-9-]+[a-z0-9]\.[a-z0-9]{2,10}(?:\.[a-z]{2,10})?$/.test(val)) {
   console.log('passed');
}

typscript version complete

//more info https://git.io/vhEfc
export const emailValid = (val:string):boolean => !/(\.{2}|-{2}|_{2})/.test(val) && /^[a-z0-9][a-z0-9-_\.]+@[a-z0-9][a-z0-9-]+[a-z0-9]\.[a-z]{2,10}(?:\.[a-z]{2,10})?$/.test(val);