Variadic Functions (Variable Arguments & Spread Operator) - Go Tutorial for Beginners #12

Master variadic functions - accept any number of arguments in Go! In this lesson, you will learn: ✓ Variadic parameter syntax (...) ✓ How variadic params become slices inside the function ✓ Mixed parameters (regular + variadic) ✓ The spread operator for passing slices ✓ Real-world patterns (logging, min/max) ✓ Why fmt.Println works with any number of arguments ⏱️ Timestamps: 0:00 - Introduction 0:24 - Variadic Basics (sum function) 2:19 - Mixed Parameters 4:16 - Spread Operator 6:27 - Real-World Patterns 9:03 - Recap 9:33 - End 💻 Source Code: https://github.com/GoCelesteAI/go_variadic 📝 Code Highlights: // Variadic function - accepts any number of ints func sum(nums ...int) int { total := 0 for _, n := range nums { total += n } return total } // Call with any number of arguments sum(1, 2, 3, 4, 5) // Spread a slice into variadic function numbers := []int{10, 20, 30} sum(numbers...) // Mixed parameters (regular + variadic) func greetAll(greeting string, names ...string) { for _, name := range names { fmt.Println(greeting, name) } } // Real-world: append is variadic! combined := append(slice1, slice2...) 📺 Full Playlist: Go Tutorial for Beginners 📺 Previous: Lesson 11 - Functions 📺 Next: Lesson 13 - Anonymous Functions & Closures 👍 Like and Subscribe for more Go tutorials! #Go #Golang #Programming #Tutorial #VariadicFunctions #SpreadOperator #LearnToCode