JSFiddle - React, Tailwind, and code Playground

JavaScript

$(document).bind('keydown',function(e) {
            var code = (e.keyCode ? e.keyCode : e.which);
            if (code == 40) {
                
                alert("down pressed");
            } else if (code == 38) {
                alert("up pressed");
            }
        });
        
$(document).bind('keydown',function(e) {
            var code = (e.keyCode ? e.keyCode : e.which);
            if (code == 40) {
                
                alert("down pressed with .bind() event");
            } else if (code == 38) {
                alert("up pressed with .bind() event");
            }
        });