package main import ( "hash/fnv" csmap "github.com/mhmtszr/concurrent-swiss-map" ) func main() { myMap := csmap.New[string, int]( // set the number of map shards. the default value is 32. csmap.WithShardCount[string, int](32), // if don't set custom hasher, use the built-in maphash. csmap.WithCustomHasher[string, int](func(key string) uint64 { hash := fnv.New64a() hash.Write([]byte(key)) return hash.Sum64() }), // set the total capacity, every shard map has total capacity/shard count capacity. the default value is 0. csmap.WithSize[string, int](1000), ) key := "swiss-map" myMap.Store(key, 10) val, ok := myMap.Load(key) println("load val:", val, "exists:", ok) deleted := myMap.Delete(key) println("deleted:", deleted) ok = myMap.Has(key) println("has:", ok) empty := myMap.IsEmpty() println("empty:", empty) myMap.SetIfAbsent(key, 11) myMap.Range(func(key string, value int) (stop bool) { println("range:", key, value) return true }) count := myMap.Count() println("count:", count) // Output: // load val: 10 exists: true // deleted: true // has: false // empty: true // range: swiss-map 11 // count: 1 }