how to append in js code example

Example 1: add element to body javascript

var elem = document.createElement('div');
elem.style.cssText = 'position:absolute;width:100%;height:100%;opacity:0.3;z-index:100;background:#000';
document.body.appendChild(elem);

Example 2: JavaScript append text to div

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

Example 3: how to append in javascript

var list=[1, 2, 3, 4, 5];
list.push(6);
// .push allows you to add a value to the end of a list

Example 4: JavaScript append HTML

let app = document.querySelector('#app');
app.append('append() Text Demo');

console.log(app.textContent);