Validate an Email ID using Regex ?
There are many articles already posted on this by Nishat, Ankur etc. I am trying to recollect the things and put it in a manner so that one can directly use it without any hassle.
1. Using inbuilt Regex option in Service catalog :-
When we add variables to service catalog, we can use default Regex validation option available for Email ID, IP address, Zip code, Number and URL.
2. Customized Email ID validation :
If Email ID requirement is like below:
/*
1. max length = 30
2. before @ 4 to 16
3. after @ and before . 3 to 10
4. ending with .com or .co.in
5. first letter small case alphabet
*/
2.1 ]
function onChange(control, oldValue, newValue, isLoading, isTemplate) {
if (isLoading || newValue === '') {
return;
}
var regex = /[a-z][a-zA-Z0-9.-]{3,15}@[a-zA-Z0-9]{3,10}.(com|co.in)/;
newValue = newValue.toString();
var isValidFormat = regex.test(newValue);
if(!isValidFormat){
g_form.addErrorMessage('Please enter valid email address.');
g_form.addErrorMessage('1. max length = 30');
g_form.addErrorMessage('2. before @ 4 to 16');
g_form.addErrorMessage('3. after @ and before . 3 to 10');
g_form.addErrorMessage('4. ending with .com or .co.in');
g_form.addErrorMessage('5. first letter small case alphabet');
g_form.clearValue('u_email_new');
}
}
2.2]
function onChange(control, oldValue, newValue, isLoading, isTemplate) {
if (isLoading || newValue === '') {
return;
}
var email = g_form.getValue('u_email_new');
if(!email.match(/[a-z][a-zA-Z0-9.-]{3,15}@[a-zA-Z0-9] {3,10}.(com|co.in)/)){
g_form.addErrorMessage('Please enter a valid email ID);
g_form.setValue('u_email_new','');
}
}
2.3]
function onSubmit() {
g_form.hideErrorBox('u_email_new');
var email = g_form.getValue('u_email_new');
return validateEmail(email);
}
function validateEmail(email) {
if (!email || email.trim().length <= 0)
return true;
var regex = /[a-z][a-zA-Z0-9.-]{3,15}@[a-zA-Z0-9] {3,10}.(com|co.in)/;
if (!regex.test(email)) {
g_form.showErrorBox('u_email_new', getMessage('Invalid Email ID'));
return false;
}
return true;
}
If this article is useful for you to understand Email validation , please take some time and efforts to mark article as Helpful. Thank you for your time !!!
Warm Regards,
Rishikesh
