Implementing Common Data Structures In Ruby: Arrays, Hashes, Linked Lists, Stacks, Binary Trees, And Graphs.

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Ruby is a popular programming language for web development, system administration, and scripting. As a software engineer, you’ll frequently need to work with data structures to optimize the performance of your code. In this article, we’ll explore some key data structures, and how to implement them in Ruby.

Arrays

In Ruby, an array is an ordered collection of objects, which can be of any type. Arrays can be accessed by their index, which starts at 0. Here is an example of how to create an array in Ruby:

array = [1, "two", :three, 4.0, true]

Arrays in Ruby provide several useful methods, including pop, push, shift, and unshift, which allow you to add or remove elements from the beginning or end of an array. You can also use length or size to determine the size of an array.

array.push("five")  # Add an element to the end of the array
array.pop          # Remove and return the last element of the array
array.unshift(0)   # Add an element to the beginning of the array
array.shift        # Remove and return the first element of the array
array.length       # Get the length of the array