JSFiddle - React, Tailwind, and code Playground

HTML

<input class='testInput' id ='testid' value = '1' name='testname' type='number' min ='1'>

JavaScript

$("#testid").keypress(function (evt) {
    evt.preventDefault();
});

$(document).keydown(function(e) {
        var elid = $(document.activeElement).hasClass('textInput');
       console.log(e.keyCode + ' && ' + elid);
        if (e.keyCode === 8 && !elid) {
            return false;
        };
    });