Function Repository Resource:

SplitAt

Split a list before or after elements that satisfy a condition

Contributed by: Sjoerd Smit

ResourceFunction["SplitAt"][list, f,Before]

converts list into a List of lists such that each element for which f returns True starts a new sublist.

ResourceFunction["SplitAt"][list, f,After]

creates a split after each element that satisfies f.

ResourceFunction["SplitAt"][list, f]

is equivalent to ResourceFunction["SplitAt"][list,f,Before].

Examples

Split a List at the even numbers, starting a new List each time EvenQ is satisfied:

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Split after each even number:

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Split after each odd number:

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