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Learn Red ? Fundamentals of Red
book

Learn Red ? Fundamentals of Red

by Ivo Balbaert
May 2018
Beginner content levelBeginner
252 pages
6h 19m
English
Packt Publishing
Content preview from Learn Red ? Fundamentals of Red

Moving items – move and swap

To move the first item from one series to another, use the move word:

s: ["A" "B" "C"]move [1 2 3] s    ;== [2 3]s                 ;== [1 "A" "B" "C"]

It returns the changed first series, but, as you can see, the second series is also changed. To move a number of items, use /part again in the code phrase move/part series1 series2 number.

=> Now answer question 11 from the Questions section.

Use swap to swap the first element(s) of two series. It returns the first series, but changes both:

swap [A B C][1 2 3] ;== [1 B C]
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Publisher Resources

ISBN: 9781789130706Supplemental Content