ES-Next:
Esnext is similar to traceur, you can use command line to compile files.
Install:
npm install esnext -g
Here's how to compile a single file an print it to stdout:
esnext myfile.js
To compile many files at once, specify an output directory:
esnext -o build lib/**/*.js
To enable source maps for these files, add the **--source-maps** flag.
But esnext doesn't support as many es6 features as traceur, so it is not that popular.
ES-shim
ES-shim is different from traceur and esnext. It is a list of shim and polyfills which you can include and use in the browser.
So it is really easy to use.
Install:
bower install es6-shim
Node
For Windows, need to install nodist for node manager.
Usage:
node --harmony --use-strict app.js