JSFiddle - React, Tailwind, and code Playground

HTML

<input id="theFiles2" type="file" name="file" multiple="">

JavaScript

$(function(){
    $("#theFiles2").click(function(){
    		//alert("ok");
        var $fileUpload = $("input[type='file']");
        //console.log($fileUpload);
        if (parseInt($fileUpload.get(0).files.length)>5){
          alert("Vous devez télécherger seulement 5 fichiers");
        }
        
    });    
});