util4go

Jun 11, 2022

Changes in this version

+ var ArrayOverFlow = errors.New("ArrayOverFlow")

+ var Counter uint32

+ var MachineID = ReadMachineID()

+ var Pid = os.Getpid()

+ func DecodeByte(b []byte, start int) (byte, error)

+ func DecodeUint16(b []byte, start int) (uint16, error)

+ func DecodeUint32(b []byte, start int) (uint32, error)

+ func EncodeUint16(i uint16) []byte

+ func EncodeUint32(i uint32) []byte

+ func GetRandomUUID() string

+ func IsNull(v1 *T, fn func() T) T

+ func IsUTF8(p []byte) bool

+ func Null2Default(v1 *T, v2 T) T

+ func ReadMachineID() []byte

Jun 5, 2022

Changes in this version

+ func EndsWith(s []byte, target []byte) bool

+ func PrintSlice(b []T)

+ func StartsWith(s []byte, target []byte) bool

Jun 2, 2022

Changes in this version

+ func GetConnIP4(c net.Conn) net.IP

+ func GetUint32IP(c net.Conn) uint32

+ func Ip2uint32(ip net.IP) uint32

+ func ReleasePerIPConn(c *PerIPConn)

+ func Uint322ip(ip uint32) net.IP

+ type PerIPConn struct

+ func AcquirePerIPConn(conn net.Conn, ip uint32, counter *PerIPConnCounter) *PerIPConn

+ func (c *PerIPConn) Close() error

+ type PerIPConnCounter struct

+ func (cc *PerIPConnCounter) Register(ip uint32) int

+ func (cc *PerIPConnCounter) Unregister(ip uint32)

Jun 2, 2022

Changes in this version

+ func BytesToString(b []byte) string

+ func StringToBytes(s string) (b []byte)

May 13, 2022

Changes in this version

+ func GetBool2(s string, defaultValue bool) bool

+ func GetFloat2(s string, defaultValue float64) float64

+ func GetITime(s string, layout string, defaultValue *time.Time) *time.Time

+ func GetInt2(s string, defaultValue int64) int64

+ func GetMapValue(m map[K]T, key K) T

+ func GetMapValue2(m map[K]T, key K, defaultValue T) T

+ func GetUint2(s string, defaultValue uint64) uint64

+ type DeString interface

May 11, 2022

Changes in this version

+ func GetBool(s string) (bool, error)

+ func GetFloat(s string) (float64, error)

+ func GetInt(s string) (int64, error)

+ func GetUint(s string) (uint64, error)

+ func Reverse(source []T) []T

+ type Numeric interface

May 10, 2022

Changes in this version

+ func Collect(source []T, fn func(one T) V) []V

+ func GroupBy(source []T, fn func(one T) K) map[K][]T

+ func Map(source []T, fn func(T) K) map[K]T

+ func MapStream(source map[K]T, fn func(K, T))

+ func Stream(source []T, fn func(one T))

+ func Values(source map[K]T) []T

+ type Dimension struct

+ LM1 string

+ LM15 string

+ LM30 string

+ LM60 string

+ M1 string

+ M15 string

+ M30 string

+ M60 string

+ func Time2Dimension(t time.Time) (*Dimension, error)

+ type Keyable interface

May 7, 2022

Changes in this version

+ func ParseURL(url string) (schema, host, query string, rtnErr error)

May 6, 2022

Changes in this version

+ func SetUnExportFieldValue(obj *T, field string, data any) (rtnErr error)

May 6, 2022

Changes in this version

+ func BytesToInt(bytesArr []byte, data *T) T

+ func BytesToIntEndian(bytesArr []byte, data *T, endian Endian) T

+ func IntToBytes(intNum T) []byte

+ func IntToBytesEndian(intNum T, endian Endian) []byte

+ type Endian int8

+ const BigEndian

+ const LittleEndian

May 5, 2022

Changes in this version

+ func InsertAt(list []T, idx int, t T) []T

+ func RemoveAt(list []T, idx int) []T

+ func ReplaceAt(list []T, idx int, t T) []T

May 5, 2022

Changes in this version

+ func ReplacePort(address, port string) string

May 5, 2022

Changes in this version

+ func Copy(src *T) *T

+ func IP(ip string) string

+ func SplitHostPort(address string) (host, port string, err error)

May 4, 2022

Changes in this version

+ var RegExpPool = make(regExpPool)

+ type RegExpError struct

+ func (e RegExpError) Error() string

May 3, 2022

Changes in this version

+ func RandRune() rune

+ func RandRune2(s, e rune) rune

May 3, 2022

Changes in this version

+ func RightPad(str string, limit int, placeholder rune) string

May 2, 2022

Changes in this version

+ func ReplaceIP(address, ip string) string

May 1, 2022

Changes in this version

+ func CopyArray(src []any, dest []T) []T

May 1, 2022

Changes in this version

+ func GetIPv4ByInterface(name string) ([]string, error)

+ func GuessIP(remote string) *string

+ func LocalIPv4s() ([]string, error)

May 1, 2022

Changes in this version

+ func BinarySearch(a []string, v interface{}) int

+ func BuildFormatString(format string, a ...any) string

+ func BuildString(a ...any) string

+ func ElmType(value reflect.Value) reflect.Type

+ func Int64ToStr(i int64) string

+ func IsEmpty(str string) bool

+ func LeftPad(str string, limit int, placeholder rune) string

+ func MD5(data string) string

+ func NewInstanceValue(t reflect.Type) reflect.Value

+ func ParseParameterName(str string) []string

+ func Reduce(source []T, fn func(one T) (R, bool)) []R

+ func ReplaceParameterValue(str string, keyAndValue map[string]string) string

+ func ReplaceParameterWithKeyValue(str string, keyAndValue map[string]string) string

+ func SaltMd5(data, salt string) string

+ func Str2Bool(source string) (any, error)

+ func Str2Float32(source string) (any, error)

+ func Str2Float64(source string) (any, error)

+ func Str2Int(source string) (any, error)

+ func Str2Int16(source string) (any, error)

+ func Str2Int32(source string) (any, error)

+ func Str2Int64(source string) (any, error)

+ func Str2Int8(source string) (any, error)

+ func Str2Object(v string, k reflect.Kind) (any, error)

+ func Str2UInt64(source string) (any, error)

+ func Str2Uint(source string) (any, error)

+ func Str2Uint16(source string) (any, error)

+ func Str2Uint32(source string) (any, error)

+ func Str2Uint8(source string) (any, error)

+ func StrNumSuffixInt(str string, mult int) int

+ func String(obj any) string

+ func Substring(source string, start int, end int) string

+ func Type2Str(t reflect.Type) (string, error)

+ func TypeOf(obj any) reflect.Type