[英]Unable to transpile es6 to es5 using Babel
I am using babel to transpile my es6 code to es5 in node application. 我正在使用babel将我的es6代码转换为节点应用程序中的es5。
I have used below babel node modules for this 为此,我使用了以下babel节点模块
"babel-cli": "6.24.0" “babel-cli”:“6.24.0”
"babel-preset-es2015": "6.24.0" “babel-preset-es2015”:“6.24.0”
"babel-preset-stage-2": "6.22.0" “babel-preset-stage-2”:“6.22.0”
And below is related configuration in package.json 以下是package.json中的相关配置
{
"name": "twinconsole",
"version": "1.1.0",
"description": "",
"main": "dist/index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1",
"prebuild": "rimraf dist",
"build": "babel --out-dir dist src"
},
"author": "'test@test.com'>",
"license": "MIT",
"devDependencies": {
"babel-cli": "6.24.0",
"babel-preset-es2015": "6.24.0",
"babel-preset-stage-2": "6.22.0",
"rimraf": "2.6.1"
},
"config": {
"babel": {
"presets": ["es2015" , "stage-2"]
}
}
}
I was expecting below es6 code which uses Arrow function 我期待下面使用箭头功能的es6代码
module.exports.print = msg => {
console.log(msg);
}
to be transpiled to 被转化为
module.exports.print = function(msg) {
console.log(msg);
}
Instead the transpiled code still has arrow function. 相反,转换后的代码仍然具有箭头功能。
Any idea what could be the issue. 知道可能是什么问题。
Babel doesn't find your configuration because you didn't setup package.json
correctly. Babel找不到您的配置,因为您没有正确设置package.json
。 From the docs : 来自文档 :
You can alternatively choose to specify your .babelrc config from within package.json like so: 您也可以选择在package.json中指定.babelrc配置,如下所示:
{ "name": "my-package", "version": "1.0.0", "babel": { // my babel config here } }
Note that babel
is at the top level, not inside config
. 请注意, babel
位于顶层,而不是config
内部。
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