JSFiddle - React, Tailwind, and code Playground
HTML
<input id="usuario" />
JavaScript
document.getElementById("usuario").onkeyup = function() {
this.value = this.value.replace(/[^\w\.]|\d/g, '');
};
<input id="usuario" />
document.getElementById("usuario").onkeyup = function() {
this.value = this.value.replace(/[^\w\.]|\d/g, '');
};