Revolutionary Business Applications in Weeks, Not Months

// 200+ lines of JavaScript
class DataTable {
  constructor(tableId, apiUrl) {
    this.table = document.getElementById(tableId);
    this.apiUrl = apiUrl;
    this.currentPage = 1;
    this.pageSize = 10;
    this.sortBy = null;
    this.sortDir = 'asc';
    this.filters = {};
    this.init();
  }

  async init() {
    this.setupEventListeners();
    this.setupPagination();
    this.setupSorting();
    this.setupFiltering();
    await this.loadData();
    this.renderTable();
  }

  setupEventListeners() {
    // 50+ lines of event handling
    this.table.addEventListener('click', (e) => {
      if (e.target.classList.contains('sort-btn')) {
        this.handleSort(e);
      }
      if (e.target.classList.contains('edit-btn')) {
        this.handleEdit(e);
      }
      if (e.target.classList.contains('delete-btn')) {
        this.handleDelete(e);
      }
    });
  }

  async loadData() {
    // Complex API handling
    const params = new URLSearchParams({
      page: this.currentPage,
      size: this.pageSize,
      sort: this.sortBy,
      dir: this.sortDir,
      ...this.filters
    });
    
    try {
      const response = await fetch(`${this.apiUrl}?${params}`);
      if (!response.ok) throw new Error('Failed to load');
      this.data = await response.json();
    } catch (error) {
      this.handleError(error);
    }
  }

  renderTable() {
    // Complex DOM manipulation
    const tbody = this.table.querySelector('tbody');
    tbody.innerHTML = '';
    
    this.data.forEach(row => {
      const tr = document.createElement('tr');
      tr.innerHTML = `
        <td>${row.name}</td>
        <td>${row.email}</td>
        <td>
          <button class="edit-btn">Edit</button>
          <button class="delete-btn">Delete</button>
        </td>
      `;
      tbody.appendChild(tr);
    });
  }

  // ... 100+ more lines for editing, 
  // validation, error handling, etc.
}