ts-data-forge
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    • Checks if the given value is a Result.

      Parameters

      • maybeOptional: unknown

        The value to check.

      Returns maybeOptional is Result<unknown, unknown>

      true if the value is a Result, otherwise false.

      const okValue = Result.ok('success');
      const errValue = Result.err(new Error('failure'));
      const notResult = { $$tag: 'ts-data-forge::Result.ok' };

      assert.ok(Result.isResult(okValue));
      assert.ok(Result.isResult(errValue));
      assert.notOk(Result.isResult(notResult));