How to loop a HashSet? #41

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opened 2016-11-22 02:42:36 +00:00 by tooooolong · 2 comments

tooooolong commented

2016-11-22 02:42:36 +00:00

(Migrated from github.com)

HI, how can i loop a HashSet, i see only TreeSet has a iterator thx!

tooooolong commented

2016-11-22 05:15:33 +00:00

(Migrated from github.com)

ids  := set.Values()
for _, id := range(ids){
}

i iterate the set by this way. but if the set is too large, this approach will get a performance problem, is it?

``` ids := set.Values() for _, id := range(ids){ } ``` i iterate the set by this way. but if the set is too large, this approach will get a performance problem, is it?

emirpasic commented

2016-11-22 11:44:28 +00:00

(Migrated from github.com)

You can't loop the HashSet. HashSet is based on Go's map whose key (thus values in the set) order is random each time. Perhaps you are fine with that random order, in which case I could enable it?