4.2.7 Dictionaries
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4 Terms
1
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What is a dictionary?
Collection of key-value pairs in which the value is accessed via the associated key
2
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What are some uses of dictionaries?
Information retrieval
In lists and queues
3
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What operations can be carried out on dictionaries?
Create
Add new key:value pair
Delete a key:value pair
Amend
Return value associated with a key
Return True or False if a key is present
Return length of the dictionary
4
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What is an application of dictionaries?
Dictionary-based compression
Note 
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