What are the differences between a Hash and an Array in Ruby?
An example of an AI chatbot conversation about Ruby's Hash and Array data structures.
What are the differences between a Hash and an Array in Ruby?
In Ruby, an Array is an ordered collection of items, while a Hash is a collection of key-value pairs. Arrays use integer indices, whereas Hashes use unique keys.
Can you give me an example of when to use a Hash instead of an Array?
Sure! Use a Hash when you need to associate values with unique keys, like storing user information where the key is the username and the value is the user's details.
What about performance? Are there any differences?
Yes, accessing elements in an Array is generally faster due to its ordered nature, while Hashes can be slower for lookups but are more flexible for key-value associations.
Can I store an Array inside a Hash?
Absolutely! You can store an Array as a value in a Hash, allowing you to create complex data structures.
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