Documentation
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Index ¶
- func Keys[K comparable, V any](m map[K]V) []K
- func Map[K comparable, V any, R any](m map[K]V, f func(K, V) R) []R
- func ShallowCopy[K comparable, V any](m map[K]V) map[K]V
- func SortedKeys[K constraints.Ordered, V any](m map[K]V) []K
- func Values[K comparable, V any](m map[K]V) []V
- type Pair
- type SyncMap
- func (me *SyncMap[K, V]) Clear()
- func (me *SyncMap[K, V]) Delete(key K)
- func (me *SyncMap[K, V]) DeleteIf(pred func(k K, v V) bool)
- func (me *SyncMap[K, V]) Len() int
- func (me *SyncMap[K, V]) Load(key K) (value V, ok bool)
- func (me *SyncMap[K, V]) LoadAndDelete(key K) (value V, loaded bool)
- func (me *SyncMap[K, V]) LoadAndUpdate(key K, updateFunc func(old V) (new V, updated bool))
- func (me *SyncMap[K, V]) LoadOrNew(key K, newFunc func() V) (actual V, loaded bool)
- func (me *SyncMap[K, V]) LoadOrNewE(key K, newFunc func() (V, error)) (actual V, loaded bool, err error)
- func (me *SyncMap[K, V]) LoadOrStore(key K, value V) (actual V, loaded bool)
- func (me *SyncMap[K, V]) MarshalJSON() ([]byte, error)
- func (me *SyncMap[K, V]) PopAll() map[K]V
- func (me *SyncMap[K, V]) Range(f func(K, V) bool)
- func (me *SyncMap[K, V]) RangeE(f func(K, V) error) error
- func (me *SyncMap[K, V]) RangeNonReentrant(f func(K, V) bool)
- func (me *SyncMap[K, V]) Replace(m map[K]V) map[K]V
- func (me *SyncMap[K, V]) Store(key K, value V)
- func (me *SyncMap[K, V]) ToSlice() []Pair[K, V]
- func (me *SyncMap[K, V]) UnmarshalJSON(b []byte) error
- func (me *SyncMap[K, V]) UpdateIf(pred func(k K, v V) (V, bool))
Examples ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func Map ¶
func Map[K comparable, V any, R any](m map[K]V, f func(K, V) R) []R
Map iterate through a map and generate a R[]
func ShallowCopy ¶
func ShallowCopy[K comparable, V any](m map[K]V) map[K]V
func SortedKeys ¶
func SortedKeys[K constraints.Ordered, V any](m map[K]V) []K
Example ¶
m := map[int]string{}
m[1] = "John"
m[5] = "Marry"
m[9] = "Rose"
// get the sorted keys
keys := SortedKeys(m)
// print the sorted keys
fmt.Println(keys)
Output: [1 5 9]
func Values ¶
func Values[K comparable, V any](m map[K]V) []V
Types ¶
type Pair ¶
type Pair[K comparable, V any] struct { Key K Value V }
func NewPair ¶
func NewPair[K comparable, V any](k K, v V) Pair[K, V]
func ToSlice ¶
func ToSlice[K comparable, V any](m map[K]V) []Pair[K, V]
ToSlice iterate through a map and generate a slice of Pair[K,V]
type SyncMap ¶
type SyncMap[K comparable, V any] struct { // contains filtered or unexported fields }
func NewSyncMap ¶
func NewSyncMap[K comparable, V any]() *SyncMap[K, V]
func NewSyncMapLength ¶
func NewSyncMapLength[K comparable, V any](len int) *SyncMap[K, V]
func (*SyncMap[K, V]) LoadAndDelete ¶
LoadAndDelete deletes the value for a key, returning the previous value if any. The loaded result reports whether the key was present.
func (*SyncMap[K, V]) LoadAndUpdate ¶
atomic load-and-update
func (*SyncMap[K, V]) LoadOrNewE ¶
func (me *SyncMap[K, V]) LoadOrNewE(key K, newFunc func() (V, error)) (actual V, loaded bool, err error)
atomic load-or-new with error check
func (*SyncMap[K, V]) LoadOrStore ¶
LoadOrStore returns the existing value for the key if present. Otherwise, it stores and returns the given value. The loaded result is true if the value was loaded, false if stored.
func (*SyncMap[K, V]) MarshalJSON ¶
MarshalJSON implements the interface MarshalJSON for json.Marshal.
func (*SyncMap[K, V]) Range ¶
deprecated f must not call any methods of me. If you want to delete items using RangeNonReentrant, use DeleteIf instead.
func (*SyncMap[K, V]) RangeE ¶
f must not call any methods of me. If you want to delete items using RangeE, use DeleteIf instead.
func (*SyncMap[K, V]) RangeNonReentrant ¶
f must not call any methods of me. If you want to delete items using Range, use DeleteIf instead.
func (*SyncMap[K, V]) Replace ¶
func (me *SyncMap[K, V]) Replace(m map[K]V) map[K]V
Replace the map with a new one, and returns the old one
func (*SyncMap[K, V]) UnmarshalJSON ¶
UnmarshalJSON implements the interface UnmarshalJSON for json.Unmarshal.
Source Files