JSFiddle - React, Tailwind, and code Playground

HTML

<input type="file" name="file" id="photo1"/>
<a id="ddd" href="#d">aaaa</a>

JavaScript

$(function(){
    $('#ddd').on('click' , function(e){
        e.preventDefault();
        var pic = document.getElementById("photo1").value;
        alert(pic);
        var answer = pic.split(/(\\|\/)/g).pop();
        alert(answer);
        var answer = answer.split(/\./g);
        alert(answer[0]);

    });


});