Simulates a message bring typed. Sets a div with the id of "typewriter" as the message that equals the string value of the str variable. There is a working example of this at the top of my website!

typeMessage.js

var str = "<h2>Full Stack Development</h2>",
    i = 0,
    isTag,
    text;
    (function type() {
        text = str.slice(0, ++i);
        if (text === str) return;

        document.getElementById('typewriter').innerHTML = text;
      
        var char = text.slice(-1);
        if( char === '<' ) isTag = true;
        if( char === '>' ) isTag = false;

        if (isTag) return type();
        setTimeout(type, 150);
    }());
});