var uuid = require('uuid-v4');
// Generate a new UUID
var myUUID = uuid();
// Validate a UUID as proper V4 format
uuid.isUUID(myUUID); // true
var questionNum = 0;
class App extends Component {
constructor(props){
super(props);
this.state = {
key: uuid(),
title: "",
author: "",
questions: [],
answers: []
}
this.handleChange = this.handleChange.bind(this);
}
handleChange(event) {
const target = event.target;
const value = target.type === "checkbox" ? target.checked : target.value;
const name = target.name;
this.setState({
[name]: value
});
}
addQuestion = () => {
questionNum++;
this.setState({
questions: this.state.questions.concat(["question","hi"])
});
console.log(this.state.questions);
this.setState({
answers: this.state.answers.concat(["hello","hi"])
});
console.log(this.state.answers);
console.log(questionNum);
console.log(this.state.title);
console.log(this.state.author);
}
render() {
return (
<div className="App">
<div>
<header className="App-header">
<img src={logo} className="App-logo" alt="logo" />
<h1 className="App-title">Quiz Form 2.0</h1>
</header>
<p className="App-intro">
To get started, edit <code>src/App.js</code> and save to reload.
</p>
</div>
<div>
<form>
<div className="Intro">
Give your Quiz a title: <input type="text" value={this.state.title} onChange={this.handleChange} name="title" key={uuid()}/><br/>
Who's the Author? <input type="text" value={this.state.author} onChange={this.handleChange} name="author" key={uuid()}/><br/><br/>
</div>
<div className="questions">
Now let's add some questions... <br/>
{this.addQuestion}
</div>
</form>
<button onClick={this.addQuestion}>Add Question</button>
</div>
</div>
);
}
}
export default App;
我的页面上的两个输入框在输入一个字符后就失去了焦点。这是我的代码,我不确定哪里出了问题,昨天还一切正常。
如果您需要了解更多信息,请留下评论,我会尽快回复。非常感谢您的帮助!