Javascript remove array duplicates #javascript #js #array #duplicates

remove_array_duplicates.js

var sandwiches = ['turkey', 'ham', 'turkey', 'tuna', 'pb&j', 'ham', 'turkey', 'tuna'];

var deduped = sandwiches.filter(function (sandwich, index) {
	return sandwiches.indexOf(sandwich) === index;
});

// Logs ["turkey", "ham", "tuna", "pb&j"]
console.log(deduped);