JSFiddle - React, Tailwind, and code Playground

HTML

<div>This is a simple example</div>

JavaScript

$('div').click( function () {
    getSelectionPosition (); 
});


function getSelectionPosition () {
    var selection = window.getSelection();
    //console.log(selection.focusNode.data, selection.focusOffset);
    console.log(selection.focusNode.data[selection.focusOffset]);
    alert(selection.focusOffset);
}