Web Reference: Learn how to use hashes in Ruby to store and organize data with key-value pairs. This tutorial covers creating, accessing, modifying, and iterating over hashes. Jul 31, 2018 · Hashes are sometimes called as associative arrays because it associates values with each of the keys but there is a difference between hashes and arrays. Arrays always use an integer value for indexing whereas hashes use the object. Hashes are also known as the maps because they map keys to values. In Ruby, a hash is a collection of key-value pairs. In this tutorial, you will learn about Ruby hashes with the help of examples.
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