apeend child using id in js code example

Example 1: JavaScript append text to div

var div = document.getElementById('myElementID');
div.innerHTML += "Here is some more data appended";

Example 2: javascript add text to li

let arr = ["g", "o", "o", "g", "L", "e";
let ul = document.getElementById("id_ul");
let i =0;
arr.map(arr=>{
 var li = document.createElement("li");
 ul.appendChild(li);
 li.innerHTML = arr[i];
})