utils

package

v0.2.0 Latest Latest Go to latest Published: Mar 5, 2024 License: MIT Imports: 33 Imported by: 0

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Repository

github.com/banbox/banexg

Links

Open Source Insights

Documentation ¶

Index ¶

Constants
Variables
func ArrContains[T comparable](s []T, e T) bool
func ByteToStruct[T any](byteChan <-chan []byte, outChan chan<- T)
func DecToPrec(num string, countMode int, precision string, isRound, padZero bool) (string, error)
func Eddsa(request []byte, secret []byte) (string, error)
func EncodeToLatin1(input string) ([]byte, error)
func EncodeURIComponent(str string, safe string) string
func EqualIn(a, b, thres float64) bool
func EqualNearly(a, b float64) bool
func GetMapFloat(data map[string]interface{}, key string) float64
func GetMapVal[T any](items map[string]interface{}, key string, defVal T) T
func HMAC(request []byte, secret []byte, algorithm func() hash.Hash, digest string) string
func ISO8601(millis int64) string
func IsNil(i interface{}) bool
func MapValStr(input map[string]interface{}) map[string]string
func OmitMapKeys(items map[string]interface{}, keys ...string)
func ParseTimeFrame(timeframe string) (int, *errs.Error)
func PopMapVal[T any](items map[string]interface{}, key string, defVal T) T
func PrecFloat64(num float64, prec float64, isRound bool) (float64, error)
func PrecFloat64Str(num float64, prec float64, isRound bool) (string, error)
func PrecisionFromString(input string) float64
func ReadFile(path string) ([]byte, error)
func ReadJsonFile(path string, obj interface{}) error
func SafeMapVal[T any](items map[string]string, key string, defVal T) (result T, err error)
func SafeParams(params map[string]interface{}) map[string]interface{}
func SetFieldBy[T any](field *T, items map[string]interface{}, key string, defVal T)
func Signature(data string, secret string, method string, hashName string, digest string) (string, *errs.Error)
func UUID(length int) string
func Unmarshal(data []byte, out interface{}) error
func UnmarshalString(text string, out interface{}) error
func UrlEncodeMap(params map[string]interface{}, escape bool) string
func WriteFile(path string, data []byte) error
func WriteJsonFile(path string, data interface{}) error
func YMD(timestamp int64, separator string, fullYear bool) string

Constants ¶

View Source

const (
	PrecModeDecimalPlace = 2
	PrecModeSignifDigits = 3
	PrecModeTickSize     = 4
)

View Source

const (
	UriEncodeSafe = "~()*!.'"
)

Variables ¶

View Source

var (
	ErrInvalidPrecision   = errors.New("invalid precision")
	ErrNegPrecForTickSize = errors.New("negative precision for tick size")
)

Functions ¶

func ArrContains ¶

func ArrContains[T comparable](s []T, e T) bool

func ByteToStruct ¶

func ByteToStruct[T any](byteChan <-chan []byte, outChan chan<- T)

ByteToStruct 将[]byte类型的chan通道，转为指定类型通道

func DecToPrec ¶

func DecToPrec(num string, countMode int, precision string, isRound, padZero bool) (string, error)

DecToPrec 将数字转换为指定精度返回

num: 需要处理的数字字符串
countMode: PrecModeDecimalPlace 保留小数点后指定位；
PrecModeSignifDigits 保留全部有效数字个数
PrecModeTickSize 返回给定的数字的整数倍
precision: 结合countMode使用，正整数，负整数，正浮点数
isRound: 是否四舍五入，默认截断
padZero: 是否尾部填充0到指定长度

func Eddsa ¶

func Eddsa(request []byte, secret []byte) (string, error)

func EncodeToLatin1 ¶

func EncodeToLatin1(input string) ([]byte, error)

func EncodeURIComponent ¶

func EncodeURIComponent(str string, safe string) string

func EqualIn ¶

func EqualIn(a, b, thres float64) bool

EqualIn 判断两个float是否在一定范围内近似相等

func EqualNearly ¶

func EqualNearly(a, b float64) bool

EqualNearly 判断两个float是否近似相等，解决浮点精读导致不等

func GetMapFloat ¶

func GetMapFloat(data map[string]interface{}, key string) float64

func GetMapVal ¶

func GetMapVal[T any](items map[string]interface{}, key string, defVal T) T

GetMapVal 从map中获取指定类型的值。只支持简单类型，不支持slice,map,array,struct等

func HMAC ¶

func HMAC(request []byte, secret []byte, algorithm func() hash.Hash, digest string) string

func ISO8601 ¶

func ISO8601(millis int64) string

func IsNil ¶

func IsNil(i interface{}) bool

IsNil 判断是否为nil

golang中类型和值是分开存储的，如果一个指针有类型，值为nil，直接判断==nil会返回false

func MapValStr ¶

func MapValStr(input map[string]interface{}) map[string]string

func OmitMapKeys ¶

func OmitMapKeys(items map[string]interface{}, keys ...string)

func ParseTimeFrame ¶

func ParseTimeFrame(timeframe string) (int, *errs.Error)

func PopMapVal ¶

func PopMapVal[T any](items map[string]interface{}, key string, defVal T) T

PopMapVal 从map中获取指定类型的值并删除。只支持简单类型，不支持slice,map,array,struct等

func PrecFloat64 ¶

func PrecFloat64(num float64, prec float64, isRound bool) (float64, error)

PrecFloat64 对给定浮点数取近似值，精确到指定位数

func PrecFloat64Str ¶

func PrecFloat64Str(num float64, prec float64, isRound bool) (string, error)

func PrecisionFromString ¶

func PrecisionFromString(input string) float64

func ReadFile ¶

func ReadFile(path string) ([]byte, error)

func ReadJsonFile ¶

func ReadJsonFile(path string, obj interface{}) error

func SafeMapVal ¶

func SafeMapVal[T any](items map[string]string, key string, defVal T) (result T, err error)

SafeMapVal 从字典中读取给定键的值，并自动转换为需要的类型，如果出错则返回默认值

func SafeParams ¶

func SafeParams(params map[string]interface{}) map[string]interface{}

func SetFieldBy ¶

func SetFieldBy[T any](field *T, items map[string]interface{}, key string, defVal T)

func Signature ¶

func Signature(data string, secret string, method string, hashName string, digest string) (string, *errs.Error)

Signature method: rsa, eddsa, hmac

hashName:
	rsa: sha256/sha384/sha512
	eddsa: 不需要
	hmac:sha256/sha384/sha512
digest: hmac: base64/hex

func UUID ¶

func UUID(length int) string

func Unmarshal ¶ added in v0.2.0

func Unmarshal(data []byte, out interface{}) error

func UnmarshalString ¶ added in v0.2.0

func UnmarshalString(text string, out interface{}) error

UnmarshalString 替代sonic.UnmarshalString，默认函数在将int64的长整数反序列化时，转为float64，导致精度损失，这里强制使用int64解码

func UrlEncodeMap ¶

func UrlEncodeMap(params map[string]interface{}, escape bool) string

UrlEncodeMap 将map编码为url查询字符串 escape: 是否对键和值进行编码

func WriteFile ¶

func WriteFile(path string, data []byte) error

func WriteJsonFile ¶

func WriteJsonFile(path string, data interface{}) error

func YMD ¶

func YMD(timestamp int64, separator string, fullYear bool) string

YMD 将13位时间戳转为日期

separator 年月日的间隔字符 fullYear 年是否使用4个数字

Types ¶

This section is empty.

Source Files ¶

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