Compile ES2015 classes to ES5
$ npm install babel-plugin-transform-es2015-classes.babelrc
// without options
{
"plugins": ["transform-es2015-classes"]
}
// with options
{
"plugins": [
["transform-es2015-classes", {
"loose": true
}]
]
}$ babel --plugins transform-es2015-classes script.jsrequire("babel-core").transform("code", {
plugins: ["transform-es2015-classes"]
});