enumerable

package module

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Versions in this module

v1

v1.26.2

Apr 30, 2026

Changes in this version

type Enumerator

+ func (q Enumerator[T]) SumInt64(selector func(T) int64) int64

type EnumeratorAny

+ func (q EnumeratorAny[T]) SumInt64(selector func(T) int64) int64

v1.26.1

Apr 15, 2026

v1.25.14

Oct 5, 2025

Changes in this version

type Enumerator

+ func (e Enumerator[T]) GroupBy(keySelector func(T) any) EnumeratorAny[grouping.Group[any, T]]

type OrderEnumerator

+ func (e OrderEnumerator[T]) GroupBy(keySelector func(T) any) EnumeratorAny[grouping.Group[any, T]]

v1.25.13

Sep 20, 2025

Changes in this version

type EnumeratorAny

+ func (q EnumeratorAny[T]) Intersect(second EnumeratorAny[T], comparer comparer.EqualityComparer[T]) EnumeratorAny[T]

v1.25.12

Sep 18, 2025

Changes in this version

type OrderEnumerator

+ func (o OrderEnumerator[T]) ForEach(action func(T))

type OrderEnumeratorAny

+ func (o OrderEnumeratorAny[T]) ForEach(action func(T))

v1.25.11

Sep 14, 2025

Changes in this version

type EnumeratorAny

+ func (e EnumeratorAny[T]) Except(second EnumeratorAny[T], comparer comparer.EqualityComparer[T]) EnumeratorAny[T]

v1.25.10

Sep 13, 2025

Changes in this version

type OrderEnumerator

+ func (o OrderEnumerator[T]) Contains(value T) bool

type OrderEnumeratorAny

+ func (o OrderEnumeratorAny[T]) Contains(value T, comparer comparer.EqualityComparer[T]) bool

v1.25.9

Sep 13, 2025

Changes in this version

type EnumeratorAny

+ func (q EnumeratorAny[T]) Distinct(comparer comparer.EqualityComparer[T]) EnumeratorAny[T]

type OrderEnumerator

+ func (o OrderEnumerator[T]) Distinct() Enumerator[T]

type OrderEnumeratorAny

+ func (o OrderEnumeratorAny[T]) Distinct(comparer comparer.EqualityComparer[T]) EnumeratorAny[T]

v1.25.8

Sep 10, 2025

Changes in this version

type Enumerator

+ func (e Enumerator[T]) ToBatch(batchSize int) [][]T

type EnumeratorAny

+ func (e EnumeratorAny[T]) ToBatch(batchSize int) [][]T

type OrderEnumerator

+ func (e OrderEnumerator[T]) ToBatch(batchSize int) [][]T

type OrderEnumeratorAny

+ func (e OrderEnumeratorAny[T]) ToBatch(batchSize int) [][]T

v1.25.7

Sep 8, 2025

Changes in this version

type Enumerator

+ func (e Enumerator[T]) OrderBy(comparer comparer.ComparerFunc[T]) OrderEnumerator[T]

+ func (e Enumerator[T]) OrderByDescending(comparer comparer.ComparerFunc[T]) OrderEnumerator[T]

type EnumeratorAny

+ func (e EnumeratorAny[T]) OrderBy(comparer comparer.ComparerFunc[T]) OrderEnumeratorAny[T]

+ func (e EnumeratorAny[T]) OrderByDescending(comparer comparer.ComparerFunc[T]) OrderEnumeratorAny[T]

+ type OrderEnumerator struct

+ func (o OrderEnumerator[T]) ElementAt(index int) (T, bool)

+ func (o OrderEnumerator[T]) FirstOrDefault(defaultValue T) T

+ func (o OrderEnumerator[T]) FirstOrNil() *T

+ func (o OrderEnumerator[T]) LastOrDefault(defaultValue T) T

+ func (o OrderEnumerator[T]) LastOrNil() *T

+ func (o OrderEnumerator[T]) Single() (T, error)

+ func (o OrderEnumerator[T]) SingleBy(comparer comparer.EqualityComparer[T]) (T, error)

+ func (o OrderEnumerator[T]) SingleOrDefault(defaultValue T) T

+ func (o OrderEnumerator[T]) Skip(n int) Enumerator[T]

+ func (o OrderEnumerator[T]) SkipLast(n int) Enumerator[T]

+ func (o OrderEnumerator[T]) SkipWhile(predicate func(T) bool) Enumerator[T]

+ func (o OrderEnumerator[T]) Take(n int) Enumerator[T]

+ func (o OrderEnumerator[T]) TakeLast(n int) Enumerator[T]

+ func (o OrderEnumerator[T]) TakeWhile(predicate func(T) bool) Enumerator[T]

+ func (o OrderEnumerator[T]) ThenBy(comparer comparer.ComparerFunc[T]) OrderEnumerator[T]

+ func (o OrderEnumerator[T]) ThenByDescending(comparer comparer.ComparerFunc[T]) OrderEnumerator[T]

+ func (o OrderEnumerator[T]) ToChannel(bufferSize int) <-chan T

+ func (o OrderEnumerator[T]) ToMap() map[T]struct{}

+ func (o OrderEnumerator[T]) ToSlice() []T

+ type OrderEnumeratorAny struct

+ func (o OrderEnumeratorAny[T]) ElementAt(index int) (T, bool)

+ func (o OrderEnumeratorAny[T]) FirstOrDefault(defaultValue T) T

+ func (o OrderEnumeratorAny[T]) FirstOrNil() *T

+ func (o OrderEnumeratorAny[T]) LastOrDefault(defaultValue T) T

+ func (o OrderEnumeratorAny[T]) LastOrNil() *T

+ func (o OrderEnumeratorAny[T]) SingleBy(comparer comparer.EqualityComparer[T]) (T, error)

+ func (o OrderEnumeratorAny[T]) Skip(n int) EnumeratorAny[T]

+ func (o OrderEnumeratorAny[T]) SkipLast(n int) EnumeratorAny[T]

+ func (o OrderEnumeratorAny[T]) SkipWhile(predicate func(T) bool) EnumeratorAny[T]

+ func (o OrderEnumeratorAny[T]) Take(n int) EnumeratorAny[T]

+ func (o OrderEnumeratorAny[T]) TakeLast(n int) EnumeratorAny[T]

+ func (o OrderEnumeratorAny[T]) TakeWhile(predicate func(T) bool) EnumeratorAny[T]

+ func (o OrderEnumeratorAny[T]) ThenBy(comparer comparer.ComparerFunc[T]) OrderEnumeratorAny[T]

+ func (o OrderEnumeratorAny[T]) ThenByDescending(comparer comparer.ComparerFunc[T]) OrderEnumeratorAny[T]

+ func (o OrderEnumeratorAny[T]) ToChannel(bufferSize int) <-chan T

+ func (o OrderEnumeratorAny[T]) ToSlice() []T

v1.25.6

Sep 4, 2025

Changes in this version

type Enumerator

+ func (e Enumerator[T]) Contains(value T) bool

type EnumeratorAny

+ func (e EnumeratorAny[T]) Contains(value T, comparer comparer.EqualityComparer[T]) bool

v1.25.5

Sep 4, 2025

Changes in this version

type Enumerator

+ func (e Enumerator[T]) ElementAt(index int) (T, bool)

type EnumeratorAny

+ func (e EnumeratorAny[T]) ElementAt(index int) (T, bool)

v1.25.4

Sep 4, 2025

Changes in this version

+ var ErrMultipleElements = &MultipleElementsError

+ var ErrNoElements = &NoElementsError

type Enumerator

+ func (e Enumerator[T]) Single() (T, error)

+ func (e Enumerator[T]) SingleBy(comparer comparer.EqualityComparer[T]) (T, error)

+ func (e Enumerator[T]) SingleOrDefault(defaultValue T) T

type EnumeratorAny

+ func (e EnumeratorAny[T]) SingleBy(comparer comparer.EqualityComparer[T]) (T, error)

+ type MultipleElementsError struct

+ func (e *MultipleElementsError) Error() string

+ type NoElementsError struct

+ func (e *NoElementsError) Error() string

v1.25.3

Aug 29, 2025

Changes in this version

type Enumerator

+ func (e Enumerator[T]) AverageFloat(keySelector func(T) float32) (float64, bool)

+ func (e Enumerator[T]) AverageFloat64(keySelector func(T) float64) (float64, bool)

+ func (e Enumerator[T]) AverageInt(keySelector func(T) int) (float64, bool)

+ func (e Enumerator[T]) AverageInt64(keySelector func(T) int64) (float64, bool)

type EnumeratorAny

+ func (e EnumeratorAny[T]) AverageFloat(keySelector func(T) float32) (float64, bool)

+ func (e EnumeratorAny[T]) AverageFloat64(keySelector func(T) float64) (float64, bool)

+ func (e EnumeratorAny[T]) AverageInt(keySelector func(T) int) (float64, bool)

+ func (e EnumeratorAny[T]) AverageInt64(keySelector func(T) int64) (float64, bool)

v1.25.2

Aug 27, 2025

Changes in this version

type Enumerator

+ func (e Enumerator[T]) DefaultIfEmpty(defaultValue T) Enumerator[T]

+ func (e Enumerator[T]) MaxBool(keySelector func(T) bool) (bool, bool)

+ func (e Enumerator[T]) MaxBy(cmp comparer.ComparerFunc[T]) (T, bool)

+ func (e Enumerator[T]) MaxByte(keySelector func(T) byte) (byte, bool)

+ func (e Enumerator[T]) MaxFloat(keySelector func(T) float32) (float32, bool)

+ func (e Enumerator[T]) MaxFloat64(keySelector func(T) float64) (float64, bool)

+ func (e Enumerator[T]) MaxInt(keySelector func(T) int) (int, bool)

+ func (e Enumerator[T]) MaxInt64(keySelector func(T) int64) (int64, bool)

+ func (e Enumerator[T]) MaxRune(keySelector func(T) rune) (rune, bool)

+ func (e Enumerator[T]) MaxString(keySelector func(T) string) (string, bool)

+ func (e Enumerator[T]) MaxTime(keySelector func(T) time.Time) (time.Time, bool)

+ func (e Enumerator[T]) MinBool(keySelector func(T) bool) (bool, bool)

+ func (e Enumerator[T]) MinBy(cmp comparer.ComparerFunc[T]) (T, bool)

+ func (e Enumerator[T]) MinByte(keySelector func(T) byte) (byte, bool)

+ func (e Enumerator[T]) MinFloat(keySelector func(T) float32) (float32, bool)

+ func (e Enumerator[T]) MinFloat64(keySelector func(T) float64) (float64, bool)

+ func (e Enumerator[T]) MinInt(keySelector func(T) int) (int, bool)

+ func (e Enumerator[T]) MinInt64(keySelector func(T) int64) (int64, bool)

+ func (e Enumerator[T]) MinRune(keySelector func(T) rune) (rune, bool)

+ func (e Enumerator[T]) MinString(keySelector func(T) string) (string, bool)

+ func (e Enumerator[T]) MinTime(keySelector func(T) time.Time) (time.Time, bool)

type EnumeratorAny

+ func (e EnumeratorAny[T]) DefaultIfEmpty(defaultValue T) EnumeratorAny[T]

+ func (e EnumeratorAny[T]) MaxBool(keySelector func(T) bool) (bool, bool)

+ func (e EnumeratorAny[T]) MaxBy(cmp comparer.ComparerFunc[T]) (T, bool)

+ func (e EnumeratorAny[T]) MaxByte(keySelector func(T) byte) (byte, bool)

+ func (e EnumeratorAny[T]) MaxFloat(keySelector func(T) float32) (float32, bool)

+ func (e EnumeratorAny[T]) MaxFloat64(keySelector func(T) float64) (float64, bool)

+ func (e EnumeratorAny[T]) MaxInt(keySelector func(T) int) (int, bool)

+ func (e EnumeratorAny[T]) MaxInt64(keySelector func(T) int64) (int64, bool)

+ func (e EnumeratorAny[T]) MaxRune(keySelector func(T) rune) (rune, bool)

+ func (e EnumeratorAny[T]) MaxString(keySelector func(T) string) (string, bool)

+ func (e EnumeratorAny[T]) MaxTime(keySelector func(T) time.Time) (time.Time, bool)

+ func (e EnumeratorAny[T]) MinBool(keySelector func(T) bool) (bool, bool)

+ func (e EnumeratorAny[T]) MinBy(cmp comparer.ComparerFunc[T]) (T, bool)

+ func (e EnumeratorAny[T]) MinByte(keySelector func(T) byte) (byte, bool)

+ func (e EnumeratorAny[T]) MinFloat(keySelector func(T) float32) (float32, bool)

+ func (e EnumeratorAny[T]) MinFloat64(keySelector func(T) float64) (float64, bool)

+ func (e EnumeratorAny[T]) MinInt(keySelector func(T) int) (int, bool)

+ func (e EnumeratorAny[T]) MinInt64(keySelector func(T) int64) (int64, bool)

+ func (e EnumeratorAny[T]) MinRune(keySelector func(T) rune) (rune, bool)

+ func (e EnumeratorAny[T]) MinString(keySelector func(T) string) (string, bool)

+ func (e EnumeratorAny[T]) MinTime(keySelector func(T) time.Time) (time.Time, bool)

v1.25.1

Aug 17, 2025

Changes in this version

+ type Enumerator func(yield func(T) bool)

+ func Empty[T comparable]() Enumerator[T]

+ func FromChannel[T comparable](ch <-chan T) Enumerator[T]

+ func FromSlice[T comparable](items []T) Enumerator[T]

+ func Range(start, count int) Enumerator[int]

+ func Repeat[T comparable](item T, count int) Enumerator[T]

+ func (q Enumerator[T]) All(predicate func(T) bool) bool

+ func (q Enumerator[T]) Any() bool

+ func (q Enumerator[T]) Concat(second Enumerator[T]) Enumerator[T]

+ func (q Enumerator[T]) Count() int

+ func (q Enumerator[T]) Distinct() Enumerator[T]

+ func (q Enumerator[T]) Except(second Enumerator[T]) Enumerator[T]

+ func (q Enumerator[T]) FirstOrDefault(defaultValue T) T

+ func (q Enumerator[T]) FirstOrNil() *T

+ func (q Enumerator[T]) ForEach(action func(T))

+ func (q Enumerator[T]) Intersect(second Enumerator[T]) Enumerator[T]

+ func (q Enumerator[T]) LastOrDefault(defaultValue T) T

+ func (q Enumerator[T]) LastOrNil() *T

+ func (q Enumerator[T]) LongCount() int64

+ func (q Enumerator[T]) Skip(n int) Enumerator[T]

+ func (q Enumerator[T]) SkipLast(n int) Enumerator[T]

+ func (q Enumerator[T]) SkipWhile(predicate func(T) bool) Enumerator[T]

+ func (q Enumerator[T]) SumFloat(selector func(T) float32) float32

+ func (q Enumerator[T]) SumInt(selector func(T) int) int

+ func (q Enumerator[T]) Take(n int) Enumerator[T]

+ func (q Enumerator[T]) TakeLast(n int) Enumerator[T]

+ func (q Enumerator[T]) TakeWhile(predicate func(T) bool) Enumerator[T]

+ func (q Enumerator[T]) ToChannel(bufferSize int) <-chan T

+ func (q Enumerator[T]) ToMap() map[T]struct{}

+ func (q Enumerator[T]) ToSlice() []T

+ func (q Enumerator[T]) Union(second Enumerator[T]) Enumerator[T]

+ func (q Enumerator[T]) Where(predicate func(T) bool) Enumerator[T]

+ type EnumeratorAny func(yield func(T) bool)

+ func EmptyAny[T any]() EnumeratorAny[T]

+ func FromChannelAny[T any](ch <-chan T) EnumeratorAny[T]

+ func FromSliceAny[T any](items []T) EnumeratorAny[T]

+ func RangeAny(start, count int) EnumeratorAny[int]

+ func RepeatAny[T any](item T, count int) EnumeratorAny[T]

+ func (q EnumeratorAny[T]) All(predicate func(T) bool) bool

+ func (q EnumeratorAny[T]) Any() bool

+ func (q EnumeratorAny[T]) Concat(second EnumeratorAny[T]) EnumeratorAny[T]

+ func (q EnumeratorAny[T]) Count() int

+ func (q EnumeratorAny[T]) FirstOrDefault(defaultValue T) T

+ func (q EnumeratorAny[T]) FirstOrNil() *T

+ func (q EnumeratorAny[T]) ForEach(action func(T))

+ func (q EnumeratorAny[T]) LastOrDefault(defaultValue T) T

+ func (q EnumeratorAny[T]) LastOrNil() *T

+ func (q EnumeratorAny[T]) LongCount() int64

+ func (q EnumeratorAny[T]) Skip(n int) EnumeratorAny[T]

+ func (q EnumeratorAny[T]) SkipLast(n int) EnumeratorAny[T]

+ func (q EnumeratorAny[T]) SkipWhile(predicate func(T) bool) EnumeratorAny[T]

+ func (q EnumeratorAny[T]) SumFloat(selector func(T) float32) float32

+ func (q EnumeratorAny[T]) SumInt(selector func(T) int) int

+ func (q EnumeratorAny[T]) Take(n int) EnumeratorAny[T]

+ func (q EnumeratorAny[T]) TakeLast(n int) EnumeratorAny[T]

+ func (q EnumeratorAny[T]) TakeWhile(predicate func(T) bool) EnumeratorAny[T]

+ func (q EnumeratorAny[T]) ToChannel(bufferSize int) <-chan T

+ func (q EnumeratorAny[T]) ToSlice() []T

+ func (q EnumeratorAny[T]) Where(predicate func(T) bool) EnumeratorAny[T]

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