JSFiddle - React, Tailwind, and code Playground

HTML

<input type="checkbox" id="chk1" value="a"><label for="chk1">aaa</label>

<div id="asd"></div>

JavaScript

$('#chk1').click(function(){
    var ada = "asd";  //ada here will be my dynamic parameters                 
    var neww= '<div id="baru'+ada+'"></div>';

    if($('#baru'+ada).length==0){
        $("#asd").append(neww);
    }else{
        $("#baru"+ada).append("Hellow<br>");
    }
});