how to get text from html in javascript code example

Example 1: textcontent in javascript

// The textContent property sets or returns the text content of the specified node

// read text content from id .. 
let text = document.getElementById('id').textContent;
console.log(text);

// change text content of id .. 
document.getElementById('id').textContent = "text is changed now !";

Example 2: set text of dom element

document.getElementById("myBtn").textContent = 'Hello World';