JSFiddle - React, Tailwind, and code Playground

HTML

<form id="myForm">
<input id="test" type="input" />
    <input id="submit" type="submit">
</form>

JavaScript

console.clear();
var onclick = function(){
    var e = $.Event('keypress');
    e.which = 65; // Character 'A'
    e.keyCode = 65; // Character 'A'
    $('#test').trigger(e);
    
    // either of these two lines will submit the form.
    //$('#submit').click();
    //$('#myForm').submit();
    
    $("#test").val($("#test").val()+String.fromCharCode(e.which));
    console.log('pressed');
};

$('#test').click(onclick);