rand

package

v1.0.0 Latest Latest Go to latest Published: Apr 10, 2026 License: MIT Imports: 8 Imported by: 0

Details

Valid go.mod file
Redistributable license
Tagged version
Stable version
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Repository

github.com/52dev/go-utils

Links

Open Source Insights

Documentation ¶

Index ¶

Variables
func Float32() float32
func Float64() float64
func Int31n(n int32) int32
func Int63n(n int64) int64
func Intn(n int) int
func NonWeightedChoice(weightArray []int) int
func RandomChoice[T any](array []T, n int) []T
func RandomInt(min, max int) int
func RandomInt32(min, max int32) int32
func RandomInt64(min, max int64) int64
func RandomString(l int) string
func Seed(seedType SeedType) int64
func Shuffle[T any](array []T)
func WeightedChoice(weightArray []int) int
type Randomizer
- func NewRandomizer(seedType SeedType) *Randomizer
- func (r *Randomizer) Float32() float32
- func (r *Randomizer) Float64() float64
- func (r *Randomizer) Int() int
- func (r *Randomizer) Int31() int32
- func (r *Randomizer) Int31n(n int32) int32
- func (r *Randomizer) Int63() int64
- func (r *Randomizer) Int63n(n int64) int64
- func (r *Randomizer) Intn(n int) int
- func (r *Randomizer) NonWeightedChoice(weightArray []int) int
- func (r *Randomizer) RandomString(l int) string
- func (r *Randomizer) RangeFloat32(min, max float32) float32
- func (r *Randomizer) RangeFloat64(min, max float64) float64
- func (r *Randomizer) RangeInt(min, max int) int
- func (r *Randomizer) RangeInt32(min, max int32) int32
- func (r *Randomizer) RangeInt64(min, max int64) int64
- func (r *Randomizer) RangeUint(min, max uint) uint
- func (r *Randomizer) RangeUint32(min, max uint32) uint32
- func (r *Randomizer) RangeUint64(min, max uint64) uint64
- func (r *Randomizer) Uint32() uint32
- func (r *Randomizer) Uint64() uint64
- func (r *Randomizer) WeightedChoice(weightArray []int) int
type SeedType
type Seeder
- func NewSeeder(seedType SeedType) *Seeder
- func (r *Seeder) CryptoRand() int64
- func (r *Seeder) MapHash() int64
- func (r *Seeder) RandomString() int64
- func (r *Seeder) Seed() int64
- func (r *Seeder) UnixNano() int64

Constants ¶

This section is empty.

Variables ¶

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var Alpha = "abcdefghijkmnpqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ23456789"

Functions ¶

func Float32 ¶

func Float32() float32

func Float64 ¶

func Float64() float64

func Int31n ¶

func Int31n(n int32) int32

func Int63n ¶

func Int63n(n int64) int64

func Intn ¶

func Intn(n int) int

func NonWeightedChoice ¶

func NonWeightedChoice(weightArray []int) int

NonWeightedChoice 根据权重随机，返回对应选项的索引，O(n). 权重大于等于0

func RandomChoice ¶

func RandomChoice[T any](array []T, n int) []T

RandomChoice 随机选择数组中的元素

func RandomInt ¶

func RandomInt(min, max int) int

RandomInt 根据区间产生随机数

func RandomInt32 ¶

func RandomInt32(min, max int32) int32

RandomInt32 根据区间产生随机数

func RandomInt64 ¶

func RandomInt64(min, max int64) int64

RandomInt64 根据区间产生随机数

func RandomString ¶

func RandomString(l int) string

RandomString 随机字符串，包含大小写字母和数字

func Seed ¶

func Seed(seedType SeedType) int64

Seed generates a seed based on the specified SeedType.

func Shuffle ¶

func Shuffle[T any](array []T)

Shuffle 随机打乱数组

func WeightedChoice ¶

func WeightedChoice(weightArray []int) int

WeightedChoice 根据权重随机，返回对应选项的索引，O(n)

Types ¶

type Randomizer ¶

type Randomizer struct {
	// contains filtered or unexported fields
}

func NewRandomizer ¶

func NewRandomizer(seedType SeedType) *Randomizer

func (*Randomizer) Float32 ¶

func (r *Randomizer) Float32() float32

func (*Randomizer) Float64 ¶

func (r *Randomizer) Float64() float64

func (*Randomizer) Int ¶

func (r *Randomizer) Int() int

func (*Randomizer) Int31 ¶

func (r *Randomizer) Int31() int32

func (*Randomizer) Int31n ¶

func (r *Randomizer) Int31n(n int32) int32

func (*Randomizer) Int63 ¶

func (r *Randomizer) Int63() int64

func (*Randomizer) Int63n ¶

func (r *Randomizer) Int63n(n int64) int64

func (*Randomizer) Intn ¶

func (r *Randomizer) Intn(n int) int

func (*Randomizer) NonWeightedChoice ¶

func (r *Randomizer) NonWeightedChoice(weightArray []int) int

NonWeightedChoice 根据权重随机，返回对应选项的索引，O(n). 权重大于等于0

func (*Randomizer) RandomString ¶

func (r *Randomizer) RandomString(l int) string

RandomString 随机字符串，包含大小写字母和数字

func (*Randomizer) RangeFloat32 ¶

func (r *Randomizer) RangeFloat32(min, max float32) float32

RangeFloat32 根据区间产生随机数

func (*Randomizer) RangeFloat64 ¶

func (r *Randomizer) RangeFloat64(min, max float64) float64

RangeFloat64 根据区间产生随机数

func (*Randomizer) RangeInt ¶

func (r *Randomizer) RangeInt(min, max int) int

RangeInt 根据区间产生随机数

func (*Randomizer) RangeInt32 ¶

func (r *Randomizer) RangeInt32(min, max int32) int32

RangeInt32 根据区间产生随机数

func (*Randomizer) RangeInt64 ¶

func (r *Randomizer) RangeInt64(min, max int64) int64

RangeInt64 根据区间产生随机数

func (*Randomizer) RangeUint ¶

func (r *Randomizer) RangeUint(min, max uint) uint

RangeUint 根据区间产生随机数

func (*Randomizer) RangeUint32 ¶

func (r *Randomizer) RangeUint32(min, max uint32) uint32

RangeUint32 根据区间产生随机数

func (*Randomizer) RangeUint64 ¶

func (r *Randomizer) RangeUint64(min, max uint64) uint64

RangeUint64 根据区间产生随机数

func (*Randomizer) Uint32 ¶

func (r *Randomizer) Uint32() uint32

func (*Randomizer) Uint64 ¶

func (r *Randomizer) Uint64() uint64

func (*Randomizer) WeightedChoice ¶

func (r *Randomizer) WeightedChoice(weightArray []int) int

WeightedChoice 根据权重随机，返回对应选项的索引，O(n)

type SeedType ¶

type SeedType string

const (
	UnixNanoSeed     SeedType = "UnixNano"
	MapHashSeed      SeedType = "MapHash"
	CryptoRandSeed   SeedType = "CryptoRand"
	RandomStringSeed SeedType = "RandomString"
)

type Seeder ¶

type Seeder struct {
	// contains filtered or unexported fields
}

func NewSeeder ¶

func NewSeeder(seedType SeedType) *Seeder

func (*Seeder) CryptoRand ¶

func (r *Seeder) CryptoRand() int64

func (*Seeder) MapHash ¶

func (r *Seeder) MapHash() int64

func (*Seeder) RandomString ¶

func (r *Seeder) RandomString() int64

func (*Seeder) Seed ¶

func (r *Seeder) Seed() int64

func (*Seeder) UnixNano ¶

func (r *Seeder) UnixNano() int64

Source Files ¶

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