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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

The body-of function

The body-of function, as its name suggests, returns the body of a defined function. For example, when used with our check function from the previous section, we get body-of :check, which returns the following:

[       answer: "safe"    foreach l list [            if find l "--" [answer: "unsafe"]    ]     answer]

It also works for built-in functions, such as body-of :replace.

Perhaps this doesn't seem so useful at first. But think about this—the body of a function is only a series of code lines. This series of lines can be manipulated with all of the words defined for series!, like it is data. This opens up lots of new possibilities!

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Publisher Resources

ISBN: 9781789130706Supplemental Content