open file in new tab html a code example

Example 1: how to open up a new tab in html

Open new tab in browser

Example 2: html open html in new tab as plain text

document.querySelector("#username").addEventListener('click', function() {
    setTimeout(function() {
		let username = document.querySelector('#username').value;
        window.open("https://www.github.com/" + username, "_blank");
    }, 2000);
}