Category:Raku
This programming language may be used to instruct a computer to perform a task.
Official website 

Garbage collected:  Yes 

Parameter passing methods:  By reference, By value 
Type safety:  Safe, Unsafe 
Type strength:  Gradual 
Type compatibility:  Nominative, Duck 
Type checking:  Dynamic, Static 
Lang tag(s):  raku,perl6 
See Also: 

Try Raku online!
Try Raku on tio.run.
Try Raku on glot.io.
Try Raku on repl.it.
Try Raku on 6pad.
Try Raku on ideone.
Try Raku with Perlito.
(RakuPlay is currently down).
Try Raku on Attempt This Online.
Raku is a member of the Perl family of programming languages. Though it resembles previous versions of Perl to no small degree, Raku is substantially a new language. By design, it isn't backwardscompatible with Perl 5. The first official release was at Christmas of 2015.
Damian Conway described the basic philosophy of Raku as follows:
The Perl 6 (now Raku) design process is about keeping what works in Perl 5, fixing what doesn't, and adding what's missing. That means there will be a few fundamental changes to the language, a large number of extensions to existing features, and a handful of completely new ideas. These modifications, enhancements, and innovations will work together to make the future Perl even more insanely great  without, we hope, making it even more greatly insane.
Major new features include multiple dispatch, declarative classes, grammars, formal parameters to subroutines, type constraints on variables, lazy evaluation, junctions, metaoperators, and the ability to change Perl's syntax at will.
The definition of Raku is specified entirely by a test suite, so we could in theory have multiple implementations. The current version of the language is 6.d, as defined by the test suite known as "roast" (Repository Of All Spec Tests). Compiler releases have datebased versions, and these are typically used in Rosetta Code entries for the "works with" fields. The only compiler implementing the full test suite, Rakudo, currently runs on either of two backends, MoarVM or JVM. Subsequent language revisions are planned for release on a roughly yearly cycle.
Useful links
A Note on the Renaming
The renaming of "Perl 6" as "Raku" occurred in October 2019. Since the old name has been in use for many years, it will take some time for the new designation to propagate widely. Expect to see both names in use for some time, but understand that they refer to exactly the same underlying idea. As of March 14, 2020, all of the existing "Perl 6" tasks have been renamed to "Raku". There are still many mentions of Perl 6 throughout the site, and likely will be for the foreseeable future.
Subcategories
This category has the following 3 subcategories, out of 3 total.
Pages in category "Raku"
The following 200 pages are in this category, out of 1,618 total.
(previous page) (next page)A
 A* search algorithm
 A+B
 Abbreviations, automatic
 Abbreviations, easy
 Abbreviations, simple
 ABC problem
 ABC words
 Abelian sandpile model
 Abelian sandpile model/Identity
 Abstract type
 Abundant odd numbers
 Abundant, deficient and perfect number classifications
 Accumulator factory
 Achilles numbers
 Ackermann function
 Active Directory/Connect
 Active Directory/Search for a user
 Active object
 Add a variable to a class instance at runtime
 Addition chains
 Additionchain exponentiation
 Additive primes
 Address of a variable
 ADFGVX cipher
 Air mass
 AKS test for primes
 Algebraic data types
 Align columns
 Aliquot sequence classifications
 AlmkvistGiullera formula for pi
 Almost prime
 Alternade words
 Amb
 Amicable pairs
 Anadromes
 Anagram generator
 Anagrams
 Anagrams/Deranged anagrams
 Anaprimes
 Angle difference between two bearings
 Angles (geometric), normalization and conversion
 Animate a pendulum
 Animation
 Anonymous recursion
 Antiprimes
 Append a record to the end of a text file
 Append numbers at same position in strings
 Apply a callback to an array
 Apply a digital filter (direct form II transposed)
 Approximate equality
 Apéry's constant
 Arbitraryprecision integers (included)
 Archimedean spiral
 Arena storage pool
 Arithmetic coding/As a generalized change of radix
 Arithmetic derivative
 Arithmetic evaluation
 Arithmetic numbers
 Arithmeticgeometric mean
 Arithmeticgeometric mean/Calculate Pi
 Arithmetic/Complex
 Arithmetic/Integer
 Arithmetic/Rational
 Array concatenation
 Array length
 Arrays
 Ascending primes
 ASCII art diagram converter
 ASCII control characters
 Aspect oriented programming
 Assertions
 Assertions in design by contract
 Associative array/Creation
 Associative array/Iteration
 Associative array/Merging
 Atomic updates
 Attractive numbers
 Audio alarm
 Audio frequency generator
 Autogram checker
 Average loop length
 Averages/Arithmetic mean
 Averages/Mean angle
 Averages/Mean time of day
 Averages/Median
 Averages/Mode
 Averages/Pythagorean means
 Averages/Root mean square
 Averages/Simple moving average
 AVL tree
B
 Bspline
 Babbage problem
 Babylonian spiral
 Bacon cipher
 Balanced brackets
 Balanced ternary
 Banker's algorithm
 Barnsley fern
 Base 16 numbers needing a to f
 Base58Check encoding
 Base64 decode data
 Base64 encode data
 Bell numbers
 Benford's law
 Bernoulli numbers
 Bernstein basis polynomials
 Best shuffle
 Bifid cipher
 Bilinear interpolation
 Bin given limits
 Binary coded decimal
 Binary digits
 Binary search
 Binary strings
 Binomial transform
 Bioinformatics/base count
 Bioinformatics/Global alignment
 Bioinformatics/Sequence mutation
 Bioinformatics/Subsequence
 Biorhythms
 Birthday problem
 Bitcoin/address validation
 Bitcoin/public point to address
 Bitmap
 Bitmap/Bresenham's line algorithm
 Bitmap/Bézier curves/Cubic
 Bitmap/Bézier curves/Quadratic
 Bitmap/Flood fill
 Bitmap/Histogram
 Bitmap/Midpoint circle algorithm
 Bitmap/PPM conversion through a pipe
 Bitmap/Read a PPM file
 Bitmap/Read an image through a pipe
 Bitmap/Write a PPM file
 Bitwise IO
 Bitwise operations
 Blum integer
 Boolean values
 Boustrophedon transform
 Box the compass
 BoyerMoore string search
 Brace expansion
 Brace expansion using ranges
 Brazilian numbers
 Break OO privacy
 Brilliant numbers
 Brownian tree
 Bulls and cows
 Bulls and cows/Player
 Burrows–Wheeler transform
 Bézier curves/Intersections
C
 Caesar cipher
 Calculating the value of e
 Calendar
 Calendar  for "REAL" programmers
 CalkinWilf sequence
 Call a foreignlanguage function
 Call a function
 Call a function in a shared library
 Call an object method
 Calmo numbers
 CalmoSoft primes
 Camel case and snake case
 Canny edge detector
 Canonicalize CIDR
 Cantor set
 Card shuffles
 Carmichael 3 strong pseudoprimes
 Carmichael lambda function
 Cartesian product of two or more lists
 Casesensitivity of identifiers
 Casting out nines
 Catalan numbers
 Catalan numbers/Pascal's triangle
 Catamorphism
 Centre and radius of a circle passing through 3 points in a plane
 Centroid of a set of Ndimensional points
 Change e letters to i in words
 Changeable words
 Chaocipher
 Chaos game
 Character codes
 Chat server
 Chebyshev coefficients
 Check if a polygon overlaps with a rectangle
 Check if two polygons overlap
 Check input device is a terminal
 Garbage collection/Yes
 Parameter passing/By reference
 Parameter passing/By value
 Typing/Safe
 Typing/Unsafe
 Typing/Gradual
 Typing/Compatibility/Nominative, Duck
 Typing/Checking/Dynamic
 Typing/Checking/Static
 Programming Languages
 Programming paradigm/Dynamic
 Programming paradigm/Imperative
 Programming paradigm/Procedural
 Programming paradigm/Reflective
 Programming paradigm/Functional
 Programming paradigm/Objectoriented
 Programming paradigm/Generic