Made With Reflect4 List New !link! Info

// Helper method to add a new task function addTask(taskText) tasks.append( id: Date.now(), text: taskText, completed: false );

function TaskApp() return reflect4.html` <div class="task-manager"> <h2>Made with Reflect4 List New Example</h2> <input id="new-task" placeholder="What needs to be done?" /> <button @click="$() => const input = document.getElementById('new-task'); addTask(input.value); input.value = ''; ">Add Task</button> <ul> $reflect4.each(tasks, (task, index) => ` <li key="$task.id" class="$task.completed ? 'done' : ''"> <input type="checkbox" .checked="$task.completed" @change="$(e) => tasks.updateAt(index, ...task, completed: e.target.checked)" /> <span>$task.text</span> <button @click="$() => removeTask(task.id)">❌</button> </li> `) </ul> <p>Total tasks: $() => tasks.length</p> </div> `;

| Operation | React (keyed) | Vue 3 | Reflect4 List New | |-----------|---------------|-------|-------------------| | Append 1 item | ~45ms | ~28ms | | | Remove first item | ~52ms | ~30ms | ~6ms | | Update every 10th item | ~120ms | ~65ms | ~22ms | made with reflect4 list new

Also, replace any manual reflect.watch on arrays with the built-in listeners:

npm install reflect4 import reflect4 from 'reflect4'; // The core "list new" instantiation const tasks = reflect4.list.new([ id: 1, text: 'Learn Reflect4', completed: false , id: 2, text: 'Write article', completed: false ]); // Helper method to add a new task

const userList = reflect4.list.new([name: 'John']); userList[0].name = 'Jane'; // Might not trigger UI update

But what does it actually mean? Is it a feature, a design pattern, or an entirely new way of thinking about state management? Reflect4 wins because it doesn’t diff the virtual DOM

Reflect4 wins because it doesn’t diff the virtual DOM. It directly patches the DOM based on exact array mutations. This makes it ideal for real-time dashboards, stock tickers, and collaborative editing tools. Even with a powerful tool like list new , mistakes happen. Here’s what to watch for: Pitfall 1: Direct Array Reassignment Bad: