4
DATA STRUCTURES: OBJECTS AND ARRAYS
Numbers, Booleans, and strings are the atoms from which data structures are built. Many types of information require more than one atom, though. Objects allow us to group values—including other objects—to build more complex structures.
The programs we have built so far have been limited by the fact that they were operating only on simple data types. After learning the basics of data structures in this chapter, you’ll know enough to start writing useful programs.
The chapter will work through a more or less realistic programming example, introducing concepts as they apply to the problem at hand. The example code will often build on functions and bindings introduced earlier in the book.
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