CodeSignal - Find Email Domain

findEmailDomain.js

/*
An email address such as "[email protected]" is made up of a local part ("John.Smith"), an "@" symbol, then a domain part ("example.com").

The domain name part of an email address may only consist of letters, digits, hyphens and dots. The local part, however, also allows a lot of different special characters. Here you can look at several examples of correct and incorrect email addresses.

Given a valid email address, find its domain part.

Example

For address = "[email protected]", the output should be
findEmailDomain(address) = "example.com";
For address = "[email protected]", the output should be
findEmailDomain(address) = "codesignal.com".
*/



function findEmailDomain(address) {
    // Turn address string into an array
    let email = address.split("");
    let end;
    
    // Loop through array of characters until we find @, then slice everything after the @
    for(let i = 0; i < email.length; i++) {
        if(email[i] === '@') {
            end = email.slice(i + 1);
        }
    }

    // Expects a string for the answer, turn end back into a string
    let answer = end.join('');
    return answer;
}