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LibJS: Implement Set.prototype.symmetricDifference

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Idan Horowitz 2022-12-01 22:44:04 +02:00 • committed by Linus Groh
parent be8329d5f6
commit e359eeabe8
4 changed files with 70 additions and 0 deletions
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Userland/Libraries/LibJS/Tests/builtins/Set/Set.prototype.symmetricDifference.js Normal file
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test("basic functionality", () => {
expect(Set.prototype.symmetricDifference).toHaveLength(1);
const set1 = new Set(["a", "b", "c"]);
const set2 = new Set(["b", "c", "d", "e"]);
const symmetricDifference1to2 = set1.symmetricDifference(set2);
const symmetricDifference2to1 = set2.symmetricDifference(set1);
for (const symmetricDifferenceSet of [symmetricDifference1to2, symmetricDifference2to1]) {
expect(symmetricDifferenceSet).toHaveSize(3);
["a", "d", "e"].forEach(value => expect(symmetricDifferenceSet.has(value)).toBeTrue());
}
});