PLT Scheme provides basic, but useful and fast ways of manipulating
hashes. A hash table is used to store a collection of data values
associated with keys.
To create a hash table use make-hash-table, which receives two
optional arguments to create tables with weakly-held keys, and to use
different comparison procedures. We will discuss this variations
later, so for the time being something like:
(make-hash-table)
creates a new hash table. By default this table will compare keys
using eq?.
In the following recipes we will discuss ways to manipulate our newly
created hash table.
-- KarlaRamirez - 19 May 2004
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