JSFiddle - React, Tailwind, and code Playground

HTML

<div class="d_class"> 
    <h1>TITLE</h1>
    <p>
        содержимое<br>
    </p>
</div>

JavaScript

function Dobj(d_class) {
    this.cont = $(d_class)
    this.dTitle = this.cont.find("h1")
    this.dBody = this.cont.find("p") 

    this.move = function() { 
      $(this.dBody).hide()
    }
     
    $(this.dTitle).click(this.move)
}


$( document ).ready(function() {        
  var d = new Dobj(".d_class")
  console.log("hi")
});