Created
August 1, 2018 18:36
-
-
Save dongcai/21fab10f681ba46896561398cd835578 to your computer and use it in GitHub Desktop.
Every request only updates the data source, and the ReactJS does the rest
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| const topics = ["php", "jquery", "reactjs"]; | |
| class RedditFeed extends React.Component { | |
| render() { | |
| return ( | |
| <div> | |
| <ul> | |
| {this.props.posts.map(post => ( | |
| <li key={post.id}> | |
| <a href={post.url} target="_blank"> | |
| {post.title} | |
| </a> | |
| </li> | |
| ))} | |
| </ul> | |
| </div> | |
| ); | |
| } | |
| } | |
| class TopicForm extends React.Component { | |
| constructor(props) { | |
| super(props); | |
| this.state = { value: "reactjs" }; | |
| this.handleChange = this.handleChange.bind(this); | |
| } | |
| getRedditFeed() { | |
| console.log(this.state.value); | |
| axios | |
| .get(`https://www.reddit.com/r/${this.state.value}.json`) | |
| .then(res => { | |
| const posts = res.data.data.children.map(obj => obj.data); | |
| // this.setState({ posts }); | |
| ReactDOM.render( | |
| React.createElement(RedditFeed, { posts }), | |
| document.getElementById("root") | |
| ); | |
| }) | |
| .catch(error => { | |
| console.log(error); | |
| }); | |
| } | |
| handleChange(event) { | |
| this.setState({ value: event.target.value }, () => this.getRedditFeed()); | |
| } | |
| componentDidMount() { | |
| this.getRedditFeed(); | |
| } | |
| render() { | |
| return ( | |
| <form> | |
| <div className="form-group"> | |
| <label> | |
| Pick your favorite topic: | |
| <select | |
| className="form-control" | |
| value={this.state.value} | |
| onChange={this.handleChange} | |
| > | |
| {topics.map(topic => <option value={topic}>{topic}</option>)} | |
| </select> | |
| </label> | |
| </div> | |
| </form> | |
| ); | |
| } | |
| } | |
| ReactDOM.render( | |
| React.createElement(TopicForm), | |
| document.getElementById("topic") | |
| ); |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment