For Loops in Go

Description

In this Go Byte, we explore for loops: Go's single loop construct for repeating code and iterating over collections. You'll see how to count with a loop, how to loop over slices using range, and why Go keeps looping simple with just one keyword. Go Bytes makes learning practical and approachable. What You'll Learn: - How to use the for keyword for all loops in Go - How to create a counter-based loop to repeat code a set number of times - How to iterate over slices using the range keyword - How to access both index and value when looping over collections - Common patterns for working with loops in Go programs Conceptual Explanation: Loops let you run the same block of code multiple times without repeating it. In Go, you use the for keyword for all loops. You can write a traditional loop with a counter that increments each iteration, or you can use for range to loop through each item in a slice automatically. The range keyword gives you both the position and value of each element, making it easy to work with collections. How It Fits: Understanding loops unlocks the ability to process data dynamically. You'll use loops to handle lists of users, process files line by line, repeat calculations, and build interactive features. Loops combine with slices and maps to create powerful data processing logic. Once you're comfortable with loops, you can build real-world features like search, filtering, and batch operations. Key Takeaways: - Go uses a single for keyword for all types of loops - Counter-based loops use the pattern: for i := start; condition; increment - The range keyword lets you loop over slices without managing indexes manually - Range returns both the index and value, use underscore to ignore either one - Loops are essential for processing collections and repeating tasks Try the challenge from the video before checking the solution. Links: Lesson folder on GitHub: https://github.com/GaryClarke/go-bytes/tree/main/for-loops Build your first Go app with me: https://www.garyclarke.tech/p/build-your-first-go-app Join the mailing list for new lessons and resources: https://content.garyclarke.tech/go-bytes-signup Follow on X/Twitter: https://twitter.com/garyclarketech Connect on LinkedIn: https://www.linkedin.com/in/garyclarketech/ Subscribe for more Go lessons. #golang #go #programming #coding #learnprogramming #gobytes