JSFiddle - React, Tailwind, and code Playground

by César Miguel Cação

HTML

<input type="text" id="idInputNome" onchange="verificaInt()" />

JavaScript

verificaInt = function(){
    var verifyInt = /\d+/g;
    if ($("#idInputNome").val().match(verifyInt) != null) {
        alert("A input Nome contém caracteres numéricos!");
    }
}