JSFiddle - React, Tailwind, and code Playground
HTML
<form>
<input type='text' name='game' />
<input type='text' name='entry_code' />
<input type='submit' name='submit' value='submit' />
</form>
JavaScript
var a = document.getElementsByName('game')[0];
var b = document.getElementsByName('entry_code')[0];
a.value = '680';
b.value = '49942323';
function submit() {
//document.createElement('form').submit.call(document.forms[0]);
}
submit();