how to createelement in javascript code example

Example 1: js create element

let myElm = document.createElement("p");	// Create a new element

myElm.innerText = 'test';		// Change the text of the element
myElm.style.color = 'red';		// Change the text color of the element

document.body.appendChild(myElm);	// Add the object to the DOM

Example 2: document create element

document.body.onload = addElement;

function addElement () { 
  // create a new div element 
  var newDiv = document.createElement("div"); 
  // and give it some content 
  var newContent = document.createTextNode("Hi there and greetings!"); 
  // add the text node to the newly created div
  newDiv.appendChild(newContent);  

  // add the newly created element and its content into the DOM 
  var currentDiv = document.getElementById("div1"); 
  document.body.insertBefore(newDiv, currentDiv); 
}