JSFiddle - React, Tailwind, and code Playground

HTML

<div id="posts">
    <div class="container">
        <div id="placeholder"></div>
        <h1>Friend Requests</h1>
    </div>
</div>

<div id="4" class="result">
    <a href="user.php?id=4">
        <img src="images/user-uploads/profile/?id=4">Random Guy
    </a>
    <div class="response">
    <button data-id="4" class="accept">Accept</button>
    <button data-id="4" class="deny">Deny</button>
    </div>
</div>

JavaScript

$(function() {
  $(document).on("click", ".accept", function() {
    var id = $(this).data("id");
    $("#"+id).remove();
  });
});