mkdir babel-compile
cd babel-compile
npm init -y
npm install --save-dev babel-core babel-preset-es2015 babel-preset-latest
{
"presets":["es2015","latest"],
"plugins":[]
}
npm install -g babel-cli
babel --version
- 新建src文件夹,建util.js,新建dist文件夹放编译过的文件
const firstFun = () => {
console.log('i am first es6 module');
}
const mapArr = [1,2,3];
const mapFun = () => {
const result = mapArr.map(item => item + 1);
console.log(result);
}
firstFun();
mapFun();
babel ./src/util.js --out-file ./dist/compiled-util.js
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<script src="../dist/compiled-util.js" type="text/javascript"></script>
</head>
<body>
</body>
</html>
