JSFiddle - React, Tailwind, and code Playground

by Adil Heybətov

HTML

<input type="file" multiple />

<input type="submit" value="submit" />

JavaScript

$(function(){
    $("input[type='submit']").click(function(){
        var $fileUpload = $("input[type='file']");
        if (parseInt($fileUpload.get(0).files.length)>2){
         alert("You can only upload a maximum of 2 files");
        }
    });    
});