Iterate
Iterate is an operation that advances through successive values or states according to specified functions or iteration rules.
Julia as a Second Language
iterate is Julia's generic function implementing the iteration protocol by returning the next element and iteration state or indicating that iteration is complete.
- How it is used
- Builds custom iterable collections that work with for loops and collection-processing functions.
- How deep it goes
- Explains the two required methods, state transitions, termination, Base extension, and the separate need for length.
- Examples
- Uses engine clusters and multistage rockets to demonstrate indexed and object-based iteration state.
- What you can do after
- Build it from scratch by extending Base.iterate and returning elements, states, and termination values for a custom type.
Clojure: The Essential Reference
iterate is a Clojure function that returns an infinite lazy sequence formed by repeatedly applying a unary function to the preceding result.
- How it is used
- Generates arbitrarily complex lazy sequences for downstream sequential processing.
- How deep it goes
- Defines inputs, outputs, laziness, side-effect expectations, exceptions, and recursive implementation behavior.
- Examples
- Demonstrates counting, Fibonacci generation, numerical series, and successive Game of Life states.
- What you can do after
- Apply it via Clojure sequence consumers to build finite views of infinite numeric or state-dependent processes.
Read how Clojure: The Essential Reference explains iterate →
Related concepts
- infinite data structureproduces · An infinite data structure represents or generates an unbounded number of elements, commonly by producing them lazily rather than storing them all.
- functionuses · A function is a callable program unit that performs an operation, may accept inputs, and can produce a result or side effect.
- loopused by · A loop is a programming control-flow construct that repeatedly executes a block of instructions according to an iteration rule or continuation condition.
- trampolinealternative to · A trampoline is a control mechanism that repeatedly invokes returned functions or computation steps until a final value is produced.
- generatorkind of · A generator is a computational component or construct that produces data or values from inputs, representations, context, or specified constraints.
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