const expected = [3, 5]; testV2WithAndWithoutDest((a, b, newDst) => { return vec2.add(a, b, newDst); }, expected, [1, 2], [2, 3]);
const expected = [10, 15]; testV2WithAndWithoutDest((a, newDst) => { return vec2.addScaled(a, [4, 6], 2, newDst); }, expected, [2, 3]);