我正在尝试获取以下代码,以在单击按钮时显示CodeMirror onChange值,然后在“输出” div中显示该值。
我的反应还很陌生,所以不确定是通过状态传递值还是最好的方法。
到目前为止,这是我的代码:
import React, { Component } from "react";
import { UnControlled as CodeMirror } from "react-codemirror2";
import "codemirror/mode/javascript/javascript";
import "codemirror/lib/codemirror.css";
export default class Code extends Component {
render() {
return (
<div>
<CodeMirror
value='console.log("Hello World")'
options={{
mode: "javascript",
lineNumbers: true
}}
onChange={(editor, data, value) => {
console.log(value);
}}
/>
<button onClick={}>run code</button>
<div className="Output">
<p>// Value should go here</p>
</div>
</div>
);
}
}
答案 0 :(得分:0)
在这种情况下,您需要添加状态:
export default class Code extends Component {
state={
value: ''
}
render() {
return (
<div>
<CodeMirror
value='console.log("Hello World")'
options={{
mode: "javascript",
lineNumbers: true
}}
onChange={(editor, data, value) => {
this.setState({value});
}}
/>
<button onClick={}>run code</button>
<div className="Output">
<p>{this.state.value}</p>
</div>
</div>
);
}
}
答案 1 :(得分:0)
您可以使用state
来维护您的值,并显示您的状态输出,
class Code extends Component {
constructor(props) {
super(props)
this.state = {
runCode: false,
outputText: 'console.log("Hello World")',
}
}
runCode = () => {
this.setState({runCode: true})
}
render() {
return (
<div>
<CodeMirror
value={this.state.outputText}
options={{
mode: 'javascript',
lineNumbers: true,
}}
onChange={(editor, data, value) => {
this.setState({
runCode: false,
outputText: value,
})
}}
/>
<button onClick={this.runCode}>run code</button>
<div className="Output">
<pre>{this.state.runCode && this.state.outputText}</pre>
</div>
</div>
)
}
}
Demo-单击按钮后附加输出。
Demo1-输入时附加了outout。