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Reference · stzString

Reversed()

A copy of the string with the characters in reverse order; original unchanged.

also: backwards in reverse order mirrored flipped

The forms of this verb

Reverse · Reversed

Basic examples (2)

Softanza
# digits flip
? Q("9876543210").Reversed()
Output
0123456789

run on 2026-10-02 04:24 inside the library at commit 0e72e2e2c; taken from 637_reversed.ring(opens in a new tab)

Softanza
oAB  = new stzString("ab")
big  = new stzString( oAB.Repeated(1000000) )
oE = new stzString("😀🎉")
e  = new stzString( oE.Repeated(50000) )
# NumberOfChars is 100,000 codepoints
? e.NumberOfChars()
# NumberOfOccurrences('😀') is 50,000
? e.NumberOfOccurrences("😀")
# Reversed keeps 100,000 codepoints
? StzLen(e.Reversed())
Output
100000
50000
100000

run on 2026-10-02 04:24 inside the library at commit 0e72e2e2c; taken from 999_engine_string_millions_narrated.ring(opens in a new tab)

Scope (1)

Softanza
oAB  = new stzString("ab")
big  = new stzString( oAB.Repeated(1000000) )
oAr = new stzString("سلام")
ar  = new stzString( oAr.Repeated(100000) )
# NumberOfChars is 400,000 codepoints
? ar.NumberOfChars()
# NumberOfOccurrences('سلام') is 100,000
? ar.NumberOfOccurrences("سلام")
# Contains inner 'لا' is TRUE
? ar.Contains("لا")
# Reversed keeps 400,000 codepoints
? StzLen(ar.Reversed())
Output
400000
100000
1
400000

run on 2026-10-02 04:24 inside the library at commit 0e72e2e2c; taken from 999_engine_string_millions_narrated.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
no
takes a case-sensitivity flag
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
no
selects by a condition
WF
no
selects by a condition, with the expressive keywords (@NextItem, @PreviousItem...)
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