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289422 (4) [Avatar] Offline
#1
The symbol paragraph is repeating.

Finally, we will look at a completely new primitive data type, Symbols. Symbols are
always unique and can be used in places where preventing collisions is of the utmost
importance. The most common use for Symbols, which we will soon learn about, is for
defining meta behaviors on objects.

Finally, we will look at a completely new primitive data type, Symbols. Symbols are
commonly used to define what I call "meta behavior(s)—[hooks to alter or define the
behavior of existing functionality]. They can also be used to avoid the sorts of naming
collisions you might run into with strings.

Manning (162) [Avatar] Offline
#2
Thanks for alerting us to the error. The content will be updated and the issue fixed.