create-react-app下的@修饰器正确的使用方式记录

在create-react-app下使用es7的@修饰器会报错''Support for the experimental syntax 'decorators-legacy' isn't currently enable"
原文地址https://www.jianshu.com/p/b841aee4745f

需要做以下几步,首先正确安装babel

"devDependencies": { "@babel/core": "^7.1.6", "@babel/plugin-proposal-class-properties": "^7.1.0", "@babel/plugin-proposal-decorators": "^7.1.6", "@babel/preset-env": "^7.1.6", } 

.babelrc文件配置:

{
    "presets": ["@babel/preset-env"], "plugins": [ ["@babel/plugin-proposal-decorators", { "legacy": true }], ["@babel/plugin-proposal-class-properties", { "loose": true }] ] } 

在pageage.json同级目录新建config-overrides.js并且添加内容

const { injectBabelPlugin } = require('react-app-rewired'); module.exports = function override(config, env) { // do stuff with the webpack config... config = injectBabelPlugin(['@babel/plugin-proposal-decorators', { "legacy": true }], config) //{ "legacy": true }一定不能掉，否则报错 return config; }; 

安装react-app-rewired并且修改启动package.json

"scripts": { - "start": "react-scripts start", + "start": "react-app-rewired start", - "build": "react-scripts build", + "build": "react-app-rewired build", - "test": "react-scripts test", + "test": "react-app-rewired test", } 

最后运行即可解决

作者：chouchou723
链接：https://www.jianshu.com/p/b841aee4745f
来源：简书
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