Go Programming Method

Introduction

This challenge aims to test the knowledge of the Go programming language's method feature.

Skills Graph

Methods

The code provided defines a struct type called rect with two fields, width and height. Two methods are defined for this struct type, area and perim. The area method calculates the area of the rectangle, and the perim method calculates the perimeter of the rectangle. The main function calls these two methods and prints their results.

Requirements

• The area method should have a receiver type of *rect.
• The perim method should have a receiver type of rect.
• The area method should return the area of the rectangle.
• The perim method should return the perimeter of the rectangle.
• The main function should call both methods and print their results.

Example

$ go run methods.go
area: 50
perim: 30
area: 50
perim: 30

## Next we'll look at Go's mechanism for grouping and
## naming related sets of methods: interfaces.

Summary

This challenge tests the ability to define methods in Go and use them to perform calculations on struct types. The area and perim methods are defined for the rect struct type, and the main function calls these methods and prints their results.