utils

func CopyByte ¶

func CopyByte(b []byte) []byte

CopyByte returns a copy of byte slice in a new pointer.

func CopyStr ¶

func CopyStr(s string) string

CopyStr copies a string to make it immutable

func EqualByte ¶

func EqualByte(a, b []byte) bool

EqualByte reports whether a and b are the same length and contain the same bytes. A nil argument is equivalent to an empty slice.

func ExtendByte ¶

func ExtendByte(b []byte, needLen int) []byte

ExtendByte extends b to needLen bytes.

Example b have [10 23 34 129], needLen 2. So return [10 23] Example b have [10 23 34 129], needLen 10. So return [10 23 34 129 0 0 0 0 0 0]

func FileExt ¶

func FileExt(fileName string) string

FileExt Extract extension of file.

Eg Get `jpeg` from `https://902-local.s3.us-west-1.amazonaws.com/news/Avatar2023.jpeg`
	Or `63e85ba1.png` from `storage/tmp/63e85ba1.png`

func Getenv ¶

func Getenv[V any](key string, init V) V

Getenv Get environment parameter (From .env file).

func IncludeStr ¶

func IncludeStr(slice []string, s string) bool

IncludeStr returns true or false if given string is in slice.

func IndexOfStr ¶

func IndexOfStr(slice []string, s string) int

IndexOfStr returns index position in slice from given string If value is -1, the string does not found.

func MD5 ¶

func MD5(s string) string

MD5 hash md5 from string value

func PrependByte ¶

func PrependByte(dst []byte, src ...byte) []byte

PrependByte prepends bytes into a given byte slice.

Example dst have [10 23 34] src is 44 54. So return [44 54 10 23 34]

func PrependByteStr ¶

func PrependByteStr(dst []byte, src string) []byte

PrependByteStr prepends a string into a given byte slice.

func QuoteStr ¶

func QuoteStr(raw string) string

QuoteStr escape special characters in a given string

func RandByte ¶

func RandByte(dst []byte) []byte

RandByte returns dst with a cryptographically secure string random bytes.

NOTE: Make sure that dst has the length you need.

func RandInt64 ¶

func RandInt64(max int64) int64

RandInt64 Generate a random number Int64 in rang [0, max)

NOTE:

Get error `G404 (CWE-338): Use of weak random number generator (math/rand instead of crypto/rand)
(Confidence: MEDIUM, Severity: HIGH)` when use `rand.Intn(max)` from "math/rand".
Fixed Refer https://github.com/securego/gosec/issues/294#issuecomment-487452731

func ReflectType ¶

func ReflectType(obj interface{}) string

ReflectType Get the name of a struct instance.

func RenameFile ¶

func RenameFile(fileName, newName string) string

RenameFile Extract new file path.

Eg Get `hello.jpeg` from `Avatar2023.jpeg` and `hello`
	Or `storage/tmp/hello.png` from `storage/tmp/63e85ba1.png` and `hello`

func Sha256 ¶

func Sha256(args ...any) string

Sha256 hash from list of arguments

func Token ¶

func Token(object ...string) string

Token generate unique token

func UnsafeBytes ¶

func UnsafeBytes(s string) []byte

UnsafeBytes returns a byte pointer without allocation.

func UnsafeStr ¶

func UnsafeStr(b []byte) string

UnsafeStr returns a string pointer without allocation.