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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

Questions

  1. What's wrong with the following line of code? Correct it:
      name: John
  1. Examine the system word in the console with ? system.
  2. Give the values of i1 and i2 after evaluating i2: 1 + i1: 1.
  3. To better see the difference between them, use print and probe on [10 * 5].
  4. Coming from other languages, it is common to type the mistake to_float 42; what happens then? Explain this.
  5. See whether you can find the results of the following expressions for yourself (see Chapter03/evaluation.red):

        print (6 < 13) and (42 < 33)        print (43 < 42) xor (44 < 43)        print complement 3

 

 

  1. From the following code snippet evaluate the last three lines and explain the results:
        a: "red" ;== "red"        b: copy a ;== "red"        a = b        a == b        a =? b
  1. What's the output of ...
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Publisher Resources

ISBN: 9781789130706Supplemental Content