Re: Array remove duplicates question

On 5/6/24 03:07, ToddAndMargo via perl6-users wrote:
> 
>>> On 6 May 2024, at 04:35, ToddAndMargo via perl6-users 
>>> <[email protected]> wrote:
>>>
>>> Hi All,
>>>
>>> I have thought of how to do it and pretty sure
>>> it would work, but just in case Raku have one
>>> of those sweet utilities, does Raku have a
>>> utility that will take an array and remove all
>>> the duplicates and rearrange the cells back
>>> in order?
>>>
>>> Many thanks,
>>> -T
> 
> On 5/6/24 01:59, Elizabeth Mattijsen wrote:
>  > $ raku -e 'my @a = 1,2,3,6,7,1,2,8; @a .= unique; say @a'
>  > [1 2 3 6 7 8]
>  >
>  > https://docs.raku.org/type/Any#method_unique
>  >
> 
> I knew there had to be something!   Thank you!

My keeper:  perl6.array.duplicates.unique.txt


Raku (perl6): how to remove duplicates from an array:

Use `unique` and `.=`

For example:

$ raku -e 'my @a = 1,2,3,6,7,1,2,8; @a .= unique; say @a'
[1 2 3 6 7 8]

$ raku -e 'my @a = "abc","DEF","abc","jkl",1,2,8; @a .= unique; say @a'
[abc DEF jkl 1 2 8]

$ raku -e 'my @a = "abc","DEF","abc","jkl",1; @a .= unique; say @a'
[abc DEF jkl 1]

$ raku -e 'my @a = "abc","DEF","abc","jkl",1,8,1,2,8; @a .= unique; say @a'
[abc DEF jkl 1 8 2]