Why don't changes made to a struct via a method persist?

Question

I\'m trying to understand why the following test code is not working as expected:

package main

import (
    \"fmt\"
    \"strings\"
)

type Test struct {
           


        

Answer 1

Go is going to pass everything by value. That includes function parameters, return values and when iterating over a slice, map or channel.

to add to @noj's answer if you switch your receiver to *Test type go will use a pointer automatically.