If you're looking for a datatype in Go that stores multiple values, that
would be the slice. Slices are ordered collections of data that can change
in size at runtime.
myIntegers := []int{5, 7, 4, 3}
myStrings := []string{"hi", "there"}
myStrings = append(myStrings, "gophers")
The difference that Ian is alluding to is that slices in Go can only hold
elements that share the same type. We can seemingly get around this by
making a slice that holds values of type interface{}.
myThings := []interface{}{"str", 1234}
The interface{} type known as the "empty interface". Every type satisfies
the empty interface and therefore any instance of any type can be stored in
our slice. In practice, though, you won't often write code like this. I
would not recommend using slices of empty interfaces in most circumstances.
If you're someone who comes from a background of only dynamically typed
languages like Python, slices may seem a bit overly restrictive with their
type rules. In practice, though, this isn't generally a problem. You just
have to write code with static typing in mind. Without knowing what you
want to accomplish, however, it's hard to give a recommendation.
Of course, I don't know your background. You may have known all this
already :)
On Tue, Jul 11, 2017 at 9:49 PM Ian Lance Taylor <i...@golang.org> wrote:
> On Tue, Jul 11, 2017 at 9:20 PM, <andy.arm...@gmail.com> wrote:
> >
> > A python list can be written as:
> >
> > ["something", 1234, 56.78, "Another string"]
> >
> > What is Go's data type that has a similar structure / capability?
>
> The literal answer to your question is
> []interface{}{"something", 1234, 56.78, "Another string"}
>
> A better answer would be: what are you trying to do? Don't try to
> write Python in Go. They are very different languages.
>
> Ian
>
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