javascript typewriter effect

1   // *** JS Typewriter Effect ***
2
3	let i = 0;
4    let target = document.getElementById("target");
5    let text = target.innerHTML;
6    target.innerHTML = ' ';
7    let speed = 75; //speed duration of effect in millisec
8
9    typeWriter(); //to call function
10    function typeWriter() {
11        if (i < text.length) {
12            target.innerHTML += text.charAt(i);
13            i++;
14            setTimeout(typeWriter, speed);
15        }
16    }

1/*
2  Creating a Typing Effect
3-----------------------------
41) Add HTML: */
5<p id="demo"></p>
6<button onclick="typeWriter()">Click me</button>
7/* 
82) Add JavaScript: */
9var i = 0;
10var txt = 'Lorem ipsum typing effect!'; /* The text */
11var speed = 50; /* The speed/duration of the effect in milliseconds */
12
13function typeWriter() {
14  if (i < txt.length) {
15    document.getElementById("demo").innerHTML += txt.charAt(i);
16    i++;
17    setTimeout(typeWriter, speed);
18  }
19}
20