title: What's the difference between babel-preset-stage-0, babel-preset-stage-1 etc?
body: <p>My question is : What's the difference between <code>babel-preset-stage-0</code>,<code>babel-preset-stage-1</code>,<code>babel-preset-stage-2</code> and <code>babel-preset-stage-3</code>, and what's the best choice when we develop with <code>ES6</code>?</p>