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Showing posts with the label DRY Principle

Because Copy-Pasting Is Not Coding - Ruby Loops Tutorial

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Loops in Ruby — Because Repeating Manually Is So 2000s | CodeCraft Diaries #4 Loops in Ruby — Because Repeating Manually Is So 2000s Imagine being told to print “I love Ruby” 100 times by hand. Sounds painful, right? Well, that’s what we used to do before loops existed (not really, but you get the point 😉). In today’s edition of CodeCraft Diaries , we’ll explore the magic of loops in Ruby — tools that make repetition effortless, elegant, and DRY (Don’t Repeat Yourself). Why Loops Matter Loops allow your code to execute a block repeatedly based on a condition or a set number of times. They're essential when you're handling lists, user input, data processing, and more. 1. while Loop The while loop runs as long as the condition is true . i = 0 while i Common mistake: Forgetting to increment the loop variable, which causes an infinite loop. 2. until Loop Think of until as the opposite of while — it runs until the cond...

Unleashing Ruby Methods: Write Less, Do More 🔁

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🚀 CodeCraft Diaries #4: Methods in Ruby — DRY Up That Code! 🚀 CodeCraft Diaries #4: Methods in Ruby — DRY Up That Code! "Copy-paste is not a strategy. Reuse is." So far in our Ruby journey, you've seen variables, data types, and how to make decisions with control flow. Now it's time to explore the most powerful tool in your dev toolkit: 🛠 Methods — Your Code’s Superpower Think of a method as your personal code assistant. Instead of repeating the same logic over and over, you wrap it in a neat little function (method) and call it whenever you need it. 📦 Defining a Method Here’s how you define a method in Ruby: def greet puts "Hello there!" end Now just call it: greet # Output: Hello there! Simple, right? But wait, there’s more… 🎯 Methods with Parameters Want to greet someone by name? def greet(name) puts "Hello, #{name}!" end greet("Ruby") # ...