QueryVerse Capstone App

QueryVerse Capstone App: free step-by-step lesson with examples, common mistakes, and interview tips — part of jQuery Tutorial on Toolliyo Academy.

8 min read Updated 8/23/2026

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jQuery Tutorial · Lesson 100 of 100

QueryVerse Capstone App

Setup & DOM ✓ → Events Effects AJAX ✓ → Perf & Integrate ✓ → Ship & Projects

Ship & Projects · 4 — Build · ~10 min · Projects

What is this?

Capstone: admin list with ready boot, delegated delete, text-safe render, fade toast, and $.get refresh from JSONPlaceholder — a thin vertical slice of the course.

Why should you care?

A working slice beats unfinished “enterprise architecture” notes on demo day.

See it live — copy this example

Examples include the jQuery 3.7 CDN. Paste into an HTML file or use Run Example to preview.

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>QueryVerse</title>
  <style>
    body { font-family: system-ui, sans-serif; margin: 1.25rem; }
    .box { padding: .75rem; border: 1px solid #ccc; border-radius: 8px; margin: .5rem 0; }
    .muted { color: #666; }
    button { margin-right: .35rem; margin-top: .35rem; }
    input, select, textarea { margin: .25rem 0; }
    table { border-collapse: collapse; width: 100%; }
    th, td { border: 1px solid #ddd; padding: .4rem .55rem; text-align: left; }
    .hidden { display: none; }
    .row-odd { background: #f7f7f7; }
    .active { font-weight: 700; }
    .toast { background: #111; color: #fff; padding: .5rem .75rem; border-radius: 6px; }
  </style>
</head>
<body>
  <h1>QueryVerse Capstone</h1>
  <button type="button" id="refresh">Refresh</button>
  <ul id="list" class="box"></ul>
  <p id="toast" class="muted" hidden>Saved</p>
<script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
<script>
$(function () {
  function render(items) {
    var $list = $('#list').empty();
    items.forEach(function (t) {
      $list.append(
        $('<li/>').append($('<span/>').text(t)).append(' ').append(
          $('<button type="button" class="del"/>').text('x')
        )
      );
    });
  }
  $('#list').on('click', '.del', function () {
    $(this).closest('li').remove();
    $('#toast').text('Removed').prop('hidden', false).stop(true, true).hide().fadeIn(120).delay(600).fadeOut(180);
  });
  $('#refresh').on('click', function () {
    $('#list').text('Loading…');
    $.getJSON('https://jsonplaceholder.typicode.com/users')
      .done(function (users) {
        render(users.slice(0, 5).map(function (u) { return u.name; }));
      })
      .fail(function () {
        render(['Alpha', 'Beta', 'Gamma']);
        $('#toast').text('Offline mock').prop('hidden', false).show();
      });
  });
  $('#refresh').trigger('click');
});
</script>
</body>
</html>

Run Example »

Edit the code below and click Run to see the result in Toolliyo’s live editor.

Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>QueryVerse</title>
  <style>
    body { font-family: system-ui, sans-serif; margin: 1.25rem; }
    .box { padding: .75rem; border: 1px solid #ccc; border-radius: 8px; margin: .5rem 0; }
    .muted { color: #666; }
    button { margin-right: .35rem; margin-top: .35rem; }
    input, select, textarea { margin: .25rem 0; }
    table { border-collapse: collapse; width: 100%; }
    th, td { border: 1px solid #ddd; padding: .4rem .55rem; text-align: left; }
    .hidden { display: none; }
    .row-odd { background: #f7f7f7; }
    .active { font-weight: 700; }
    .toast { background: #111; color: #fff; padding: .5rem .75rem; border-radius: 6px; }
  </style>
</head>
<body>
  <h1>QueryVerse Capstone</h1>
  <button type="button" id="refresh">Refresh</button>
  <ul id="list" class="box"></ul>
  <p id="toast" class="muted" hidden>Saved</p>
<script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
<script>
$(function () {
  function render(items) {
    var $list = $('#list').empty();
    items.forEach(function (t) {
      $list.append(
        $('<li/>').append($('<span/>').text(t)).append(' ').append(
          $('<button type="button" class="del"/>').text('x')
        )
      );
    });
  }
  $('#list').on('click', '.del', function () {
    $(this).closest('li').remove();
    $('#toast').text('Removed').prop('hidden', false).stop(true, true).hide().fadeIn(120).delay(600).fadeOut(180);
  });
  $('#refresh').on('click', function () {
    $('#list').text('Loading…');
    $.getJSON('https://jsonplaceholder.typicode.com/users')
      .done(function (users) {
        render(users.slice(0, 5).map(function (u) { return u.name; }));
      })
      .fail(function () {
        render(['Alpha', 'Beta', 'Gamma']);
        $('#toast').text('Offline mock').prop('hidden', false).show();
      });
  });
  $('#refresh').trigger('click');
});
</script>
</body>
</html>

Result