List Slicing

Why Exclude the End Index? The two halves split cleanly at index 4. No item appears in both halves, and no item is missing. The combined length equals the original length. This clean division is possible because the end of one slice equals the start of the next. Omitting Start or End You can omit the start index, the end index, or both. Omitting start means "from the beginning." Omitting end means "to the end." This gives you convenient shortcuts for common operations. Negative Indices in Slices Just as you can use negative indices to access individual items from the end, you can use them in slices. This is extremely useful when you want to work with the tail of a list without knowing its exact length. The Step Parameter Negative Step - Reversing A negative step moves backward through the

About This Interactive Section

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