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19. Methods
//https://gobyexample.com/ // Go supports _methods_ defined on struct types. package main import "fmt" type rect struct { width, height int } // This `area` method has a _receiver type_ of `*rect`. func (r *rect) area() int { return r.width * r.height } // Methods can be defined for either pointer or value // receiver types. Here's an example of a value receiver. func (r rect) perim() int { return 2*r.width + 2*r.height } func main() { r := rect{width: 10, height: 5} // Here we call the 2 methods defined for our struct. fmt.Println("area: ", r.area()) fmt.Println("perim:", r.perim()) // Go automatically handles conversion between values // and pointers for method calls. You may want to use // a pointer receiver type to avoid copying on method // calls or to allow the method to mutate the // receiving struct. rp := &r fmt.Println("area: ", rp.area()) fmt.Println("perim:", rp.perim()) }
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03.02.2020
5. For
11. Ranges
18. Structs
20. Interfaces
8. Arrays
03.02.2020
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