What's the recommended version of ECMAScript that my TypeScript should compile to?
<p>I'm working through Angular2 tutorials, and I've been going through each section until I opened the <code>tsconfig.json</code> and stopped at the following: <code>"target": "es5"</code>. This means that I compile to ECMAScript 5. </p>

<pre><code>{    
   "compilerOptions": {    
     "target": "es5",
     "module": "commonjs",
     "moduleResolution": "node",
     "sourceMap": true,
     "emitDecoratorMetadata": true,
     "experimentalDecorators": true,
     "removeComments": false,
     "noImplicitAny": false
   } 
 }
</code></pre>

<p>I'm currently using ES5. Should I change the target to <code>"es6"</code> or <code>"es7"</code>? What's the advantage of using later versions?</p>