Function zip

zip<S1, W1, E1, S2, W2, E2>(
resultA: TernaryResult<S1, E1, W1>,
resultB: TernaryResult<S2, E2, W2>,
): TernaryResult<readonly [S1, S2], E1 | E2, W1 | W2>

Combines two TernaryResults, prioritising Err over Warn over Ok.

Type Parameters

Parameters

resultA: TernaryResult<S1, E1, W1>
resultB: TernaryResult<S2, E2, W2>

Returns TernaryResult<readonly [S1, S2], E1 | E2, W1 | W2>

Example

const okPair = TernaryResult.zip(TernaryResult.ok('left'), TernaryResult.ok(1));

const warnPair = TernaryResult.zip(
  TernaryResult.warn('left', 'warn'),
  TernaryResult.ok(1),
);

const errPair = TernaryResult.zip(
  TernaryResult.ok('left'),
  TernaryResult.err('err'),
);

assert.deepStrictEqual(okPair, TernaryResult.ok(['left', 1] as const));

assert.deepStrictEqual(
  warnPair,
  TernaryResult.warn(['left', 1] as const, 'warn'),
);

assert.deepStrictEqual(errPair, TernaryResult.err('err'));