JSFiddle - React, Tailwind, and code Playground

by Berguiga

HTML

<input type="text" id="idInput" />
<br/>
<input type="text" id="idInput2" />

JavaScript

$('#idInput').click(function()
{
    
    var dest = $("#idInput2");
        dest.val(dest.val().split(" ").join("")); 
    
    if( $("#idInput2").val().length == 0 ) {    
        alert("aaa");
    }
    
})