slutil

func Concat ¶ added in v0.3.8

func Concat[T any](a []T, b ...[]T) []T

func CopyFilter ¶

func CopyFilter[T any](l []T, f func(T) bool) []T

Filter slice value.

The original slice is not modified only copied.

func Distinct ¶

func Distinct(l []string) []string

Filter duplicate values

func DistinctFunc ¶

func DistinctFunc() func([]string) []string

Filter duplicate values

func FastDistinct ¶

func FastDistinct(l []string) []string

Filter duplicate values, faster but values are sorted, and the slice values are filtered in place.

func Filter ¶

func Filter[T any](l []T, f func(T) bool) []T

Filter slice values in place.

Be cautious that both slices are backed by the same array.

func FilterEmptyStrFunc ¶ added in v0.3.0

func FilterEmptyStrFunc() func([]string) []string

func FilterFunc ¶

func FilterFunc[T any](f func(T) bool) func([]T) []T

Filter slice value.

The original slice is not modified only copied.

func MapFunc ¶

func MapFunc[T any, V any](mapFunc func(t T) V) func([]T) []V

Map slice item to another.

func MapTo ¶

func MapTo[T any, V any](ts []T, mapFunc func(t T) V) []V

Map slice item to another.

func MergeMap ¶

func MergeMap[K comparable, V any](vs []V, keyFunc func(v V) K) map[K]V

Merge slice of items to a map.

func MergeMapAs ¶

func MergeMapAs[T any, K comparable, V any](ts []T, keyFunc func(t T) K, valueFunc func(t T) V) map[K]V

Merge slice of items to a map.

func MergeMapSlice ¶

func MergeMapSlice[K comparable, V any](vs []V, keyFunc func(v V) K) map[K][]V

Merge slice of items to a map.

func MergeVarargs ¶ added in v0.3.4

func MergeVarargs[T any](fst T, args ...T) []T

func NewSyncSlice ¶

func NewSyncSlice[T any](initCap int) *syncSlice[T]

func Prepend ¶ added in v0.3.4

func Prepend[T any](v []T, ts ...T) []T

func QuoteStrSlice ¶

func QuoteStrSlice(sl []string) []string

func SliceCopy ¶

func SliceCopy[T any](v []T) []T

func SliceFilterFirst ¶

func SliceFilterFirst[T any](items []T, f func(T) bool) (T, bool)

Select one from the slice that matches the condition.

func SliceFirst ¶

func SliceFirst[T any](v []T) (t T, ok bool)

func SliceGetOne ¶

func SliceGetOne[T any](items []*T) *T

Select random one from the slice

func SliceRemove ¶

func SliceRemove[T any](v []T, idx ...int) []T

func SplitSubSlices ¶

func SplitSubSlices[T any](sl []T, limit int, f func(sub []T) error) error

func Transform ¶

func Transform[T any, V any](sl []T, transform func([]T) []V, updates ...func([]V) []V) []V

Transform value to another type then perform optional value updates.

See FilterFunc, MapFunc, FilterEmptyStrFunc, DistinctFunc.

func Update ¶

func Update[T any](sl []T, fs ...func([]T) []T) []T

Update slice values.

See FilterFunc, FilterEmptyStrFunc, DistinctFunc.

func UpdateSliceValue ¶

func UpdateSliceValue[T any](s []T, upd func(t T) T)

func UpdateTransform ¶ added in v0.3.0

func UpdateTransform[T any, V any](sl []T, transform func([]T) []V, updates ...func([]T) []T) []V

Update slice values then transform value to another type.

See FilterFunc, MapFunc, FilterEmptyStrFunc, DistinctFunc.

func VarArgAny ¶ added in v0.3.1

func VarArgAny[T any](v []T, defVal func() T) (t T)