Code to be refacted: const TodoList = ({ todos, onTodoClick }) => ( <ul> {todos.map(todo => <Todo key={todo.id} {...todo} onClick={() => onTodoClick(todo.id)} /> )} </ul> ); let nextTodoId = 0; const TodoApp = ({ todos, visibili…

Learn how to avoid the boilerplate of passing the props down the intermediate components by introducing more container components. Code to be refactored: const FilterLink = ({ filter, currentFilter, children, onClick }) => { if (filter === currentFil…

Clean TodoApp Component, it doesn't need to receive any props from the top level component: const TodoApp = () => ( <div> <AddTodo /> <VisibleTodoList /> <Footer /> </div> ); Also we don't need wrap ReactDOM.render() into…

Code to be refactored: const AddTodo = ({ onAddClick }) => { let input; return ( <div> <input ref={node => { input = node; }} /> <button onClick={() => { onAddClick(input.value); input.value = ''; }}> Add Todo </button> &l…

The code to be refactored: let nextTodoId = 0; class TodoApp extends Component { render() { const { todos, visibilityFilter } = this.props; const visibleTodos = getVisibleTodos( todos, visibilityFilter ); return ( <div> <input ref={node => { t…

Code to be refactored: let nextTodoId = 0; class TodoApp extends Component { render() { const { todos, visibilityFilter } = this.props; const visibleTodos = getVisibleTodos( todos, visibilityFilter ); return ( <div> <input ref={node => { this.…

Finally, I just noticed that the to-do app component doesn't actually have to be a class. I can turn it into a function. I prefer to-do that when possible. Code to be refactored: class TodoApp extends Component { render() { const { todos, visibilityF…

Code to be refactored: let nextTodoId = 0; class TodoApp extends Component { render() { const { todos, visibilityFilter } = this.props; const visibleTodos = getVisibleTodos( todos, visibilityFilter ); return ( <div> <input ref={node => { this.…

https://medium.com/@dan_abramov/smart-and-dumb-components-7ca2f9a7c7d0 There’s a simple pattern I find immensely useful when writing React applications. If you’ve been doing React for a while, you have probably already discovered it. This article exp…

原文:Container Components Container Components 在 React 模式上对我的代码有最深远影响的一个模式叫 container component 模式. 在 React.js Conf 上,Jason Bonta 和我们讲了他们在Facebook上是如何建立高性能组件(High Performance Components).Nestled 在这个演讲中讲的就是this gem about container components. 这个概念很简单: 一…