The library documents itself · Collections & objects

stzListWalker

22 own methods · 4 forms written with extensions, listed under their method

the source: base/list/stzListWalker.ring(opens in a new tab) · All classes · The area reference: Collections & objects

Under each method, its extensions (Q CS XT Z ZZ IB W U): bold and ticked, it exists; struck, it does not. The extensions and what they mean

Examples: 0 come from the library's tests; 12 were composed from each method's signature and run for this page, on a fresh object, for example o1 = new stzListWalker([1, 2, 3, 4, 5]). 10 methods have none yet. Examples run on 2026-10-03 12:54 inside the library at commit 0e72e2e2c.

Method

Explanation, as the source carries it

init

initializationno extension

Content

content accessno extension

List

content accessno extension

NumberOfItems

content access

composed example

o1 = new stzListWalker([1, 2, 3, 4, 5])
? o1.NumberOfItems()
#--> 5

composed from the signature, run for this page

no extension

IsEmpty

content access

composed example

o1 = new stzListWalker([1, 2, 3, 4, 5])
? o1.IsEmpty()
#--> 0

composed from the signature, run for this page

no extension

AddWalker

walking the list itemsno extension

Walkers

walking the list itemsno extension

Walker

walking the list itemsQCSXTZZZIBWU

WalkNForward

walking the list n items forwardalso written: WalkForwardNSteps

composed example

o1 = new stzListWalker([1, 2, 3, 4, 5])
? @@( o1.WalkNForward(2) )
#--> [ 1, 3, 5 ]

composed from the signature, run for this page

no extension

WalkNBackward

walking the list n items backwardalso written: WalkBackwardNSteps

composed example

o1 = new stzListWalker([1, 2, 3, 4, 5])
? @@( o1.WalkNBackward(2) )
#--> [ 5, 3, 1 ]

composed from the signature, run for this page

no extension

WalkBetween

walking betweenno extension

WalkForthAndBack

walking forth and back

composed example

o1 = new stzListWalker([1, 2, 3, 4, 5])
? @@( o1.WalkForthAndBack(2) )
#--> [ 1, 3, 5, 5, 3, 1 ]

composed from the signature, run for this page

no extension

WalkW

Walk the list collecting where the W condition holds.also written: PositionsW · PositionsWhere

composed example

o1 = new stzListWalker([1, 2, 3, 4, 5])
? @@( o1.WalkW("@item > 3") )
#--> [ 4, 5 ]

composed from the signature, run for this page

no extension

WalkUntil

Walk the items UNTIL the given condition holds.

composed example

o1 = new stzListWalker([1, 2, 3, 4, 5])
? @@( o1.WalkUntil("@item > 3") )
#--> [ 1, 2, 3, 4 ]

composed from the signature, run for this page

QCSXTZZZIBWU

WalkWhere

Walk the list collecting where the condition holds.

composed example

o1 = new stzListWalker([1, 2, 3, 4, 5])
? @@( o1.WalkWhere("@item > 3") )
#--> [ 4, 5 ]

composed from the signature, run for this page

no extension

WalkWhen

walking when

composed example

o1 = new stzListWalker([1, 2, 3, 4, 5])
? @@( o1.WalkWhen("@item > 3") )
#--> [ 4, 5 ]

composed from the signature, run for this page

QCSXTZZZIBWU

WalkWhile

Walk the items WHILE the given condition holds.QCSXTZZZIBWU

WalkZigZag

walking in zigzag patternno extension

WalkEveryNth

walking every nth positionalso written: WalkEach

composed example

o1 = new stzListWalker([1, 2, 3, 4, 5])
? @@( o1.WalkEveryNth(2) )
#--> [ 2, 4 ]

composed from the signature, run for this page

no extension

WalkFromTo

walk between two valuesno extension

WalkSkipping

walk skipping n itemsalso written: WalkSkip

composed example

o1 = new stzListWalker([1, 2, 3, 4, 5])
? @@( o1.WalkSkipping(2) )
#--> [ 1, 4 ]

composed from the signature, run for this page

no extension

WalkAccumulating

walk with custom accumulatoralso written: WalkAccumulate

composed example

o1 = new stzListWalker([1, 2, 3, 4, 5])
? @@( o1.WalkAccumulating("@item > 3") )
#--> [ 0, 0, 0, 1, 1 ]

composed from the signature, run for this page

no extension