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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

Copying objects and inheritance

Let's start with a really simple person object—person1: object [ name: "Mueller"  tel: ""].

The following code applies what we have learned in the Assigning and copying section in Chapter 3, Using Words, Values, and Types—namely, "":

person1: object [ name: "Mueller" tel: none ]person2: person1person1/tel: "108-4271"person2/tel  ;== "108-4271"person3: copy person1person3 ;== make object! [ name: "Mueller" tel: "108-4271"]person1/tel: "333-4271"person3 ;== make object! [ name: "Mueller" tel: "108-4271"]

The person2 word references the same object as person1, so it changes whenever person1 changes. The person3 word is a new object, with all values copied from person1 (a clone), and so it is independent from

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Publisher Resources

ISBN: 9781789130706Supplemental Content