javascript replace text in element code example

Example 1: change text of element js

document.getElementById("p1").innerHTML = "New text!";

Example 2: javacsript update text in span

document.getElementById("myspan").textContent="newtext";

Example 3: javascript replace string

var str = "JavaScript replace method test";
var res = str.replace("test", "success");  
//res = Javscript replace method success

Example 4: javascript replace text within dom

document.body.innerHTML = document.body.innerHTML.replace('hello', 'hi');