JSFiddle - React, Tailwind, and code Playground

by Bright RYMER

HTML

<div class="alert alert-success" data-id="UserName">Nom utilisateur valide</div>
<p id="countReponse">0 réponse</p>

JavaScript

$(function() {
  
    var idAlert = $(".alert").data("id");
    alert(idAlert);
    if(($("#countReponse").text() == "0 réponse") & (idAlert=="UserName")) {
        $(".alert").attr("class", "alert alert-danger");
        $(".alert").text("Nom d'utilisateur inexistant");
    }
});