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Let's learn ES6! Master new JavaScript features faster and easier

Default Parameters

We'll cover the following...

Default Parameters are a great addition to the language. They allow you to, well, add default parameters. And this solves a very simple problem.

Javascript (babel-node)
function getData(url) {
  url = url || 'http://api.data.com';
  return fetch(url)
    .then(res => res.json);
}

Consider the above, a simple function to get data from a ...