How-To film · 51
The right collection for the job
Change one corrected List quantity and watch the published array and restock pipeline update while the original List and folded ink total stay intact.
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- The right collection preserves the operation that matters.
- A List keeps order and history. Six quantities feed the restock pipeline.
- The original List still has five items. Its fourth remains twenty-five.
- Change only the corrected first quantity, from six to eight.
- The Array updates. Restock falls from ninety-three seventy-five to eighty-one twenty-five.
- The Set policy still holds, while the Map fold keeps fifty-five units of ink.
- Choose by operation. Keep history.
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