browser.min.js,导入该js文件,可以在IE中使用ES6的特性
http://babaljs.io/

<!DOCTYPE html>
<html lang="ch">
<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>
</head>
<body>
<script type="text/javascript" src="./babel/browser.min.js"></script>
<script type="text/babel">
const list = ['one','two','three'];
list.forEach( (item,index) => {
alert(item + (index+1));
});
</script>
</body>
</html>