JSFiddle - React, Tailwind, and code Playground

HTML

<button id="myButton" onclick="submitFunction()">Click</button>

<script>
    function submitFunction() {
    alert("clicked!");
}
</script>

JavaScript

$(window).keydown(function (e) {
    if ( e.which === 50 ) {   
         $("#myButton").click();
    }
});