Check a string contain particular substring or not.
when a user register I want to check entered emailid domain match with my predefined emailid or not(eg @gmail.com ,@outlook.com etc).
2 Answers
Using regular expressions is probably the best way.
function validateEmail(email) { var re = /@gmail.com$/; return re.test(email); } 
1 Comment
Swapnil
Regular expressions are versatile one you can make custom changes as per requirements
You can use indexOf javascript method, or use regular expression:
var mail = "[email protected]"; var domain = "foo"; if(mail.indexOf(domain) > -1) { console.log("domain valid"); } else { console.log("domain not valid"); } So you can have your custom function:
/* global domain array */ var domains = new Array("gmail.com", "outlook.com", ...); var checkDomain(mail) { for(var i = 0; i != domains.length; ++i) { if(mail.indexOf(domains[i]) > -1) { return true; } } return false; } 
indexOf?