A sequence is a finite, linearly-ordered collection of elements. Words for working with sequences are in the sequences vocabulary.
Sequences implement a protocol:
Sequence protocol
The f object as a sequence
Sequence utility words can operate on any object whose class implements the sequence protocol. Most implementations are backed by storage. Some implementations obtain their elements from an underlying sequence, or compute them on the fly. These are known as Virtual sequences.
Accessing sequence elements
Sequence combinators
Adding and removing sequence elements
Appending sequences
Subsequences and slices
Reshaping sequences
Testing sequences
Searching sequences
Comparing sequences
Splitting sequences
Groups and clumps
Destructive sequence operations
Treating sequences as stacks
Sorting sequences
Binary search
Sets
Trimming sequences
Cartesian product operations
Deep sequence combinators
Using sequences for looping:
Counted loops
Numeric ranges
Using sequences for control flow:
Control flow with sequences
For inner loops:
Unsafe sequence operations
Implementing sequence combinators:
Implementing sequence combinators
Sequences implement a protocol:
Sequence protocol The f object as a sequenceSequence utility words can operate on any object whose class implements the sequence protocol. Most implementations are backed by storage. Some implementations obtain their elements from an underlying sequence, or compute them on the fly. These are known as Virtual sequences.
Accessing sequence elements Sequence combinators Adding and removing sequence elements Appending sequences Subsequences and slices Reshaping sequences Testing sequences Searching sequences Comparing sequences Splitting sequences Groups and clumps Destructive sequence operations Treating sequences as stacks Sorting sequences Binary search Sets Trimming sequences Cartesian product operations Deep sequence combinatorsUsing sequences for looping:
Counted loops Numeric rangesUsing sequences for control flow:
Control flow with sequencesFor inner loops:
Unsafe sequence operationsImplementing sequence combinators:
Implementing sequence combinators