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Reference · stzList

UniqueItems()

Same as UniqueItemsCS: The unique items of the list, in first-seen order.

Basic examples (1)

Softanza
o1 = new stzList([ 2, 8, 2, 11, 2, 11, 1, 4, 2, 1, 3, 2, 10, 8, 3, 8 ])
? o1.FindWF( func x { return Q(x).IsOneOfThese([ 2, 4, 6]) } )
? o1.ItemsWF( func x { return Q(x).IsOneOfThese([ 2, 4, 6]) } )
? o1.UniqueItemsWF( func x { return Q(x).IsOneOfThese([ 2, 4, 6]) } )
? @@NL( o1.ItemsAndTheirPositionsWF( func x { return Q(x).IsOneOfThese([ 2, 4, 6]) } ) )
Output
1
3
5
8
9
12

2
2
2
4
2
2

2
4

[
	[
		2,
		[
			1,
			3,
			5,
			9,
			12
		]
	],
	[
		4,
		[ 8 ]
	]
]

run on 2026-10-02 04:22 inside the library at commit 0e72e2e2c; taken from 475_findwxt.ring(opens in a new tab)

The extensions of this method

Each extension, and whether it exists for this method; an extension that exists combines with the others (FindSTCS).

Extension
Exists
What it adds · The names
Q
no
does what the method does, then returns the object, so the call can be chained
QQ
no
chains on the next, more specific type of object (the Q ladder)
QQQ
no
chains on the most specific type of object (the Q ladder)
QRT
no
returns the result as an object of the requested type
CS
yes
takes a case-sensitivity flag · UniqueItemsCS
ST
no
takes the position to start from (StartingAt)
IB
no
takes bounds that are included (IncludingBounds)
XT
no
the extended form: more parameters than the base method
XTT
no
yet another extension: a further extended form, after XT
Z
no
includes the position in what it returns
ZZ
no
returns positions as sections, [start, end]
W
yes
selects by a condition · UniqueItemsW
WF
yes
selects by a condition, with the expressive keywords (@NextItem, @PreviousItem...) · UniqueItemsWF
D
no
takes a direction, forward or backward (Directional)
F
no
takes a function (the condition or the update is given as a function); the forms document also uses F for the future form, which defers the action
Many
no
works on a collection of items instead of one (the plural form)
Except
no
takes exceptions, what to leave out (the exceptional form)
U
no
returns the result without duplication

Every example is a test file of the library, run inside the library for this page; only those whose output kept every promise their file wrote are shown.

See also