Using mutability. It's not a sin, just something to avoid when not strictly necessary. http://jspha.com/posts/mutable_algorithms_in_immutable_languges_part_1/

Using mutability. It's not a sin, just something to avoid when not strictly necessary. http://jspha.com/posts/mutable_algorithms_in_immutable_languges_part_1/ http://jspha.com/posts/mutable_algorithms_in_immutable_langu... http://jspha.com/posts/mutable_algorithms_in_immutable_languages_part_2/ http://jspha.com/posts/mutable_algorithms_in_immutable_langu... http://jspha.com/posts/mutable_algorithms_in_immutable_languages_part_3/ http://jspha.com/posts/mutable_algorithms_in_immutable_langu...