dengjonathan · September 10, 2016 19:07
diff --git a/add.js b/add.js
 var d = 'not modified';

 // add is a pure function that doesn't modify anything out of its scope
 function add(x, y) {
  return x + y;
 }

 add(2, 3) // 5
 add(2, 3) // always gonna be 5
 console.log(d) // 'not modified'
	var d = 'not modified';

	// add is a pure function that doesn't modify anything out of its scope
	function add(x, y) {
	return x + y;
	}

	add(2, 3) // 5
	add(2, 3) // always gonna be 5
	console.log(d) // 'not modified'