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NPM version Dependency Status build status

setjs - Set data structure for JavaScript

setjs implements a a Set API inspired by Python. There are some differences, though. The biggest difference is that the API is immutable by design. There is a basic set structure and functions that operate upon it. Consider the API below:

var a = set(4, 3, 4, 3); // set accepts arbitrary amount of items and may be empty
var b = set(4, 5);
var c = set(b, 6); // set accepts sets too. this results in {4, 5, 6}

set.count(a); // 2
set.contains(a, 3); // true
set.equals(a, a); // true
set.equals(a, set()); // false

set.union(a, b); // {3, 4, 5}
set.intersection(a, b); // {4}
set.difference(a, b); // {5}
set.symmetricDifference(a, b); // {3, 5}

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Set data structure for JavaScript (MIT)

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