how to get text of p in js code example

Example 1: change text of element js

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

Example 2: js get words first letter

var str = "Java Script Object Notation";
var matches = str.match(/\b(\w)/g); // ['J','S','O','N']
var acronym = matches.join(''); // JSON

console.log(acronym)