JSFiddle - React, Tailwind, and code Playground

HTML

<input name="asd" value="c" />
<input name="dsf" value="d" class="on" />
<input name="dfg" value="f" class="on" />
<input name="fgh" value="g" />
<input name="cvb" value="h" class="on" />
<input name="asd" value="c" />
<input name="dsf" value="d" class="on" />
<input name="dfg" value="f" class="on" />
<input name="fgh" value="g" />
<input name="cvb" value="h" class="on" />
<button>serialize</button>

JavaScript

$('button').click(function(){
    alert($('input.on').serialize());
});