Look at the "Example (SortKeys)" part of https://golang.org/pkg/sort/
-rob
On Wed, Nov 8, 2017 at 12:38 PM, rob <drrob...@gmail.com> wrote:
> Hi. I am trying to sort a slice of a struct using one of two different
> fields.
>
> type directory struct {
> name string
> subtotal int64
> }
>
> type dirslice []directory
>
> I want to sort a var of type dirslice by either name or subtotal. I
> understand how to sort by one of those, by defining
>
> func (ds dirslice) Less(i, j int) bool {
> return ds[i].subtotal < ds[j].subtotal
> }
>
> func (ds dirslice) Swap(i, j int) {
> ds[i], ds[j] = ds[j], ds[i]
> }
>
> func (ds dirslice) Len() int {
> return len(ds)
> }
>
> But I'm struggling w/ how to have a method that can use a different
> version of Swap, depending upon what I want.
>
> thanks,
>
> Rob Solomon
>
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