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Working with Ruby Collections

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Get Started!
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Course Details

Language

Ruby

Category

Programming

Certificate

Yes

Requirements

  • ✅ Basic understanding of Ruby syntax and programming fundamentals
  • ✅ Ruby installed on your system (latest stable version recommended)
  • ✅ Familiarity with basic terminal/command-line operations

Content

Reviews

01

Understanding Ruby Collections

4 Chapters - 0/4 Completed

Introduction to Collections – What & Why?

Overview of Common Collection Types – Array, Hash, Set, Range

When to Use Which Collection

Creating and Accessing Arrays & Hashes

02

Arrays & Hashes in Depth

4 Chapters - 0/4 Completed

Array Operations – map, select, reject, flatten, uniq

Hash Operations – Iteration, Key Lookup, Default Values

Nested Arrays and Hashes – Structuring Complex Data

Real-world Examples – Building Lists and Dictionaries

03

Sets, Ranges & Enumerables

4 Chapters - 0/4 Completed

Working with Ranges (.. vs ...)

Using Sets for Uniqueness and Set Operations

Mastering Enumerable – each, find, reduce, group_by, lazy

Chaining Enumerables for Clean Data Transformations

04

Practical Usage & Best Practices

4 Chapters - 0/4 Completed

Common Pitfalls & How to Avoid Them

Performance Tips – Memory, Mutation, Lazy Evaluation

Writing Clean, Reusable Collection Logic

Mini Project – Build a CLI Tool Using Ruby Collections