JSFiddle - React, Tailwind, and code Playground

HTML

<input id="myElement" value="Lorem Ipsum" />

JavaScript

var getSelected = function(){
    var t = '';
    if(window.getSelection) {
        t = window.getSelection();
    } else if(document.getSelection) {
        t = document.getSelection();
    } else if(document.selection) {
        t = document.selection.createRange().text;
    }
    return t;
}

$("#myElement").select(function(eventObject) {
    alert(getSelected().toString());
});