Functions (Parameters, Returns & Separate Files) - Go Tutorial for Beginners #11

Master Go functions - the building blocks of reusable code! In this lesson, you will learn: ✓ Function declaration and syntax ✓ Parameters - single, multiple, and mixed types ✓ Return values and the return keyword ✓ Multiple return values (Go's superpower!) ✓ Error handling with value + error pattern ✓ Named return values for documentation ✓ Organizing functions in separate files (main.go + utils.go) ⏱️ Timestamps: 0:00 - Introduction 0:24 - Function Basics (Parameters) 2:23 - Return Values & Multiple Returns 4:49 - Named Return Values 7:01 - Functions in Separate Files 10:11 - Recap 10:41 - End 💻 Source Code: https://github.com/GoCelesteAI/go_functions 📝 Code Highlights: // Basic function with parameters func greet(name string) { fmt.Println("Hello,", name) } // Function with return value func add(a, b int) int { return a + b } // Multiple return values func divmod(a, b int) (int, int) { return a / b, a % b } // Named return values func rectangle(w, h float64) (area, perimeter float64) { area = w * h perimeter = 2 * (w + h) return } // Separate files: utils.go func Add(a, b int) int { return a + b } // main.go uses utils.go - same package, no import needed! sum := Add(10, 20) 📺 Full Playlist: Go Tutorial for Beginners 📺 Previous: Lesson 10 - Maps 📺 Next: Lesson 12 - Variadic Functions 👍 Like and Subscribe for more Go tutorials! #Go #Golang #Programming #Tutorial #Functions #GoProgramming #LearnToCode