benjamingr/gist:5909909

Created July 2, 2013 14:46

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gistfile1.txt

	Here is a solution using ES6 sets.

	var a = new Set(Array1);
	Array2.forEach(function(elem){
	a.delete(elem);
	});
	return a;

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benjamingr commented Jul 2, 2013

That assumes that adding properties and removing properties from a JS object is O(1), but it works :)

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