title: I didn't understand const{} in Node
body: <pre><code>const { exec } = require('child_process');
  </code></pre>
  
  <p>I'm still new to node.js. I would like to know what's the purpose of the curly braces near const, is it like an angular/typescript way to fetch the object from the module? </p>
  
  <p>Is there any ES6 or whatever new syntax that I should be aware of? 
  like: </p>
  
  <pre><code>const[foo] = , or const(foo) = 
  </code></pre>