extract-the-domain-name-from-a-url.js

// Write a function that when given a URL as a string, parses out just the domain name and returns it as a string. For example:

// * url = "http://github.com/carbonfive/raygun" -> domain name = "github"
// * url = "http://www.zombie-bites.com"         -> domain name = "zombie-bites"
// * url = "https://www.cnet.com"                -> domain name = cnet"

function domainName(url) {
    url = url.replace('https://', '')
    url = url.replace('http://', '')
    url = url.replace('www.', '')
    return url.substring(0, url.indexOf('.'))
}