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Dictionaries
A dictionary is a data type similar to arrays, but works with keys and values instead of indexes. Each value stored in a dictionary can be accessed using a key, which is any type of object (a string, a number, a list, etc.) instead of using its index to address it.
For example, a database of phone numbers could be stored using a dictionary like this:
Alternatively, a dictionary can be initialized with the same values in the following notation:
Iterating over dictionaries
Dictionaries can be iterated over, just like a list. However, a dictionary, unlike a list, does not keep the order of the values stored in it. To iterate over key value pairs, use the following syntax:
Removing a value
To remove a specified index, use either one of the following notations:
or:
Exercise
Add "Jake" to the phonebook with the phone number 938273443, and remove Jill from the phonebook.
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