pnavarrc/writing-a-babel-plugin-01.js

## writing-a-babel-plugin-01.js
// In
[1, 2, 3].map(n => n * n);

// Out
[1, 2, 3].map(function(n) { return n * n; });
	// In
	[1, 2, 3].map(n => n * n);

	// Out
	[1, 2, 3].map(function(n) { return n * n; });