问题描述
我将Babel与React js一起使用.问题是我不想将es6转换为es5.我想继续使用es6.我只需要将jsx转换为js.这是我的.babelrc
I am using Babel with React js.Problem is I don't want to convert es6 to es5. I want to keep using es6.I only need to transform jsx to js.This is my .babelrc
{
"plugins": ["transform-react-jsx"]
}
这是我的代码:
import React from "react";
/****** Header *******/
export class Header extends React.Component {
onSubmit = (e) => {
e.preventDefault();
console.log('Submitting');
const errors = this.validate();
if (Object.keys(errors).length === 0) {
this.setState({ loading: true });
fetch(this.props.action, {
method: 'POST',
body: JSON.stringify(this.state.data),
headers: new Headers({
'Content-Type': 'application/json'
}),
credentials: 'same-origin'
}).then(res => res.json())
.catch(error => console.error('Error:', error))
.then(response => console.log('Success:', response));
}
};
render() {
return (
<div>
<a href={this.props.homeUrl}><img src={this.props.logoUrl} /></a>
<div><span>Hello {this.props.userName}</span></div>
<button onclick={this.onSubmit(e).bind(this)}>Click me</button>
</div>
);
}
}
这是我运行"babel components/Header.js -o Header.babel.js"时看到的内容
This is what I see when I run "babel components/Header.js -o Header.babel.js"
SyntaxError: components/Header.js: Unexpected token (5:13)
3 | /****** Header *******/
4 | export class Header extends React.Component {
> 5 | onSubmit = (e) => {
| ^
6 | e.preventDefault();
7 | console.log('Submitting');
8 | const errors = this.validate();
它向我显示了es6代码行的语法错误,所以我认为Babel仍然需要将es6转换为es5
It show me the syntax error for es6 line of code So I think Babel still requires converting es6 to es5
我安装了"transform-class-properties"后,它显示了另一条错误消息:
After I installed "transform-class-properties", it show another error message:
SyntaxError: components/Form.js: Unexpected token (55:12)
53 | getFieldValue(e) {
54 | this.setState({
> 55 | ...this.state,
| ^
56 | data: {
57 | ...this.state.data,
58 | [e.target.name]: e.target.value
您知道有什么办法吗?仅将JSX转换为JS
Do you know is there any way to do this? Only transform JSX to JS
非常感谢您的支持
推荐答案
您正在使用类属性语法,例如someVar = () => {}
You're using class properties syntax e.g. someVar = () => {}
这将不会被jsx插件转换.您需要为所有仍然是建议的高级功能添加插件.
Which will not be transformed by the jsx plugin. You'll need to add plugins for all of those advanced features which are still proposals.
以下是用于类属性的babel插件: https://babeljs.io/docs/plugins/transform-class-properties/
Here's the babel plugin for class properties: https://babeljs.io/docs/plugins/transform-class-properties/
本质上,它只会转换您提供的插件,但浏览器尚不支持类属性,更不用说在节点中了.
Essentially, it'll only transform the plugins you give it, but class properties aren't supported in browsers yet, let alone in node.
这篇关于使用Babel仅转换jsx的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!