# 使用babel编译 node ## .babelrc 在babel中使用 decorators等 ``` { "presets": ["@babel/preset-env"], "plugins": [ "@babel/plugin-transform-runtime", ["@babel/plugin-proposal-decorators", { "legacy": true }] ] } ``` ## package.json @babel/node可能没用上 ``` { "dependencies": { "@babel/plugin-transform-runtime": "^7.4.3", "@babel/runtime": "^7.4.3", }, "devDependencies": { "@babel/cli": "^7.4.3", "@babel/core": "^7.4.3", "@babel/node": "^7.2.2", "@babel/plugin-proposal-decorators": "^7.4.0", "@babel/polyfill": "^7.4.3", "@babel/preset-env": "^7.4.3" } } ``` ## start.js ``` require('@babel/register') require("@babel/polyfill") require('./server/index') ```