Babel preset for all es2015 plugins, with loose mode enabled where available.
$ npm install --save-dev babel-preset-es2015-loose
.babelrc
(Recommended).babelrc
{
"presets": ["es2015-loose"]
}
$ babel script.js --presets es2015-loose
require("babel-core").transform("code", {
presets: ["es2015-loose"]
});