focusMethod = function getFocus() {
document.getElementById("myTextField").focus(); //select the input textfield and set the focus on it
}// select() in javascript
// add below code to your javascript file
function selectText() {
const input = document.getElementById('text-box');
input.focus();
input.select();
}
// add below code to your html file
<input type="text" id="text-box" size="20" value="Hello world!">
<button onclick="selectText()">Select text</button>// This will select all of the text in the textarea or input called element
element.select();function selectText() {
const input = document.getElementById('text-box');
input.select();
}