JSFiddle - React, Tailwind, and code Playground

by SĂ©bastien Lorentz

HTML

<input id="newListItem" type="text" />
      <button id="addItem">Add</button>

JavaScript

let fieldObj = document.getElementById("newListItem").value;
    let button = document.getElementById("addItem");

        button.addEventListener("click", function(){            
            if (fieldObj !== "") {
                console.log(fieldObj); 
                console.log("Everything ok!");
            }
            else {
                console.log(fieldObj);
                console.log("Something's wrong!");
            }

        }, false);