GOLANG Free Section Starter Challenge 35 min

5. Structs & Pointer Receiver Methods

Overview: Define typed Go structs and attach methods using pointer receivers for state mutation without class inheritance.

Concept & Syntax Guide

Go eschews traditional classes in favor of composition using structs. Methods with pointer receivers `(d *Developer)` can directly mutate the struct's fields without copying values.

Hands-On Practice Exercise

Create a Developer Struct with Promotion Method

Define a struct `Developer` with `Name` and `Tier`. Add a method `Promote()` that sets `Tier = "VIP Member"`. Print the updated tier.

Target Output: Rohan Status: VIP Member

Need a hint? Click here to reveal

Hint: Check syntax carefully and make sure your code contains: Rohan Status: VIP Member

GOLANG Code Editor

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package main
import "fmt"

type Developer struct {
    Name string
    Tier string
}

func (d *Developer) Promote() {
    d.Tier = "VIP Member"
}

func main() {
    dev := Developer{Name: "Rohan", Tier: "Free Learner"}
    dev.Promote()
    fmt.Println(dev.Name, "Status:", dev.Tier)
}