Go has some interesting quirks.
Recently I learned you can iterate over nil slices.
Here’s an example:
var foo []string // nil slice
var bar = []string{} // empty slice
fmt.Println(foo == nil) // true
fmt.Println(bar == nil) // false
for _, v := range foo { // no errors
fmt.Println("%v", v)
}
for _, v := range bar { // no errors
fmt.Println("%v", v)
}
Normally, I avoid returning nils in functions, to reduce the need for a nil check before iterating, but looks like Go has it built in.
Neat!
