const expected = Math.sqrt(3 * 3 + 4 * 4); const value = vec2.distance(vec2.create(2, 3), [5, 7]); assertStrictEqual(value, expected);
const expected = 3 * 3 + 4 * 4; const value = vec2.distanceSq(vec2.create(2, 3), [5, 7]); assertStrictEqual(value, expected);