Module "loop"

Index

Functions

Functions

Const defLoop

defLoop(test: StackProc, body: StackProc): (Anonymous function)

- Defined in packages/pointfree/src/loop.ts:24
Higher order word. Takes a test and body stack program. Applies test to copy of TOS and executes body. Repeats while test is truthy.
( -- ? )
example
```
run([loop([dup, ispos], [dup, print, dec])], [[3]])
// 3
// 2
// 1
// [ true, [ 0 ], undefined ]
```
Parameters
- test: StackProc
  -
- body: StackProc
  -
Returns (Anonymous function)

Const dotimes

dotimes(ctx: StackContext): StackContext

- Defined in packages/pointfree/src/loop.ts:82
Executes given body word/quotation n times. In each iteration pushes current counter on d-stack prior to executing body.
example
```
pf.run([3, ["i=", pf.swap, pf.add, pf.print], pf.dotimes])
// i=0
// i=1
// i=2
```
With empty body acts as finite range generator 0 .. n:
```
// range gen
pf.run([3, [], pf.dotimes])
[ [ 0, 1, 2 ], [], {} ]

// range gen (collect results as array)
pf.runU([3, pf.cpdr, [], pf.dotimes, pf.movrd, pf.collect])
// [ 0, 1, 2 ]
```
( n body -- ? )
Parameters
- ctx: StackContext
Returns StackContext

Const loopq

loopq(ctx: StackContext): StackContext

- Defined in packages/pointfree/src/loop.ts:47
Non-HOF version of {@link loop}. Expects test result and body quotation / word on d-stack.
( testq bodyq -- ? )
Parameters
- ctx: StackContext
  -
Returns StackContext

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