callbackhell.js

var userData= getGithubData('testuser');

function getGithubData(username) {
    $.get('https://api.github.com/users/' +username, function(user){
        var key= user.data.info.name
        $.get('https://api.github.com/users/' +key+ '/repos&per_page=100', function(user2){
            var followers= user2.data.info.followers
            storeFollowers(followers, function(){
                console.log('done');
            })
        )} 
    )}
}