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Form.js
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Form.js
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import React, { Component } from 'react'
class Form extends Component {
constructor(props) {
super(props)
this.state = {
username: '',
comments: '',
topic: 'react'
}
}
handleUsernameChange = event => {
this.setState({
username: event.target.value
})
}
handleCommentsChange = event => {
this.setState({
comments: event.target.value
})
}
handleTopicChange = event => {
this.setState({
topic: event.target.value
})
}
handleSubmit = event => {
alert(`${this.state.username} ${this.state.comments} ${this.state.topic}`)
event.preventDefault()
}
render() {
const { username, comments, topic } = this.state
return (
<form onSubmit={this.handleSubmit}>
<div>
<label>Username </label>
<input
type="text"
value={username}
onChange={this.handleUsernameChange}
/>
</div>
<div>
<label>Comments</label>
<textarea
value={comments}
onChange={this.handleCommentsChange}
/>
</div>
<div>
<label>Topic</label>
<select value={topic} onChange={this.handleTopicChange}>
<option value="react">React</option>
<option value="angular">Angular</option>
<option value="vue">Vue</option>
</select>
</div>
<button type="submit">Submit</button>
</form>
)
}
}
export default Form