anonymous functions example

example.js

// "normal" way of writing (uses an anonymous function)
words.filter(function(word) {
  return word.length < 6;
});

// arrow function (uses an anonymous function)
words.filter(word => word.length < 6);

// but you don't have to use an anonymous function...
// filter takes a function as an argument, and you can define that separately
// to reuse it other places, or make your code more readable
function checkIfShorterThanSixChars(n) {
  return n.length < 6;
};

words.filter(checkIfShorterThanSixChars(word));