JSFiddle - React, Tailwind, and code Playground

HTML

<div class="parent">
  <a>1</a>
  <div class="parent">
    <a>2</a>
    <div class="parent">
      <a>3</a>
    </div>
    <a>4</a>
  </div>
  <div>
  	<a>5</a>
  </div>
</div>

JavaScript

$(document).on('click','a',function(){
	var parent = $(this).parents('.parent:first');
  var a = $(parent).find('a').not(function(){
  	if($(this).parents('.parent:first').index() == $(parent).index())
  	console.log($(this).html());
  });
});