https://github.com/kennychenfight/randstr

Generate random string very faster
https://github.com/kennychenfight/randstr

go

Last synced: 3 days ago
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Generate random string very faster

• Host: GitHub
• URL: https://github.com/kennychenfight/randstr
• Owner: KennyChenFight
• License: apache-2.0
• Created: 2021-04-26T10:00:17.000Z (over 3 years ago)
• Default Branch: master
• Last Pushed: 2021-04-26T10:19:19.000Z (over 3 years ago)
• Last Synced: 2024-06-20T16:32:07.812Z (4 months ago)
• Topics: go
• Language: Go
• Homepage:
• Size: 10.7 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
[![Go Reference](https://pkg.go.dev/badge/github.com/KennyChenFight/golib.svg)](https://pkg.go.dev/github.com/KennyChenFight/randstr)

# randstr

generate random string very faster.

The code is based on this awesome StackOverflow answer by [icza](https://stackoverflow.com/questions/22892120/how-to-generate-a-random-string-of-a-fixed-length-in-go).

## How to use

### install

`go get github.com/KennyChenFight/randstr`

### Example

```go

package main

import (

	"fmt"

	"github.com/KennyChenFight/randstr"

)

func main() {

	const randomStrLength = 6

	generator := randstr.NewFastGenerator(randstr.CharSetEnglishAlphabet)

	fmt.Println(generator.GenerateRandomStr(randomStrLength))

}

```

You can reference example folder.

## Benchmark

```bash

goos: windows

goarch: amd64

pkg: github.com/KennyChenFight/randstr

cpu: Intel(R) Core(TM) i7-9700 CPU @ 3.00GHz

BenchmarkFastGenerator_GenerateRandomStr_EnglishAlphabet

BenchmarkFastGenerator_GenerateRandomStr_EnglishAlphabet-8              27867314                42.19 ns/op            1 allocs/op

BenchmarkFastGenerator_GenerateRandomStr_EnglishAlphabetLowercase

BenchmarkFastGenerator_GenerateRandomStr_EnglishAlphabetLowercase-8     29626336                41.15 ns/op            1 allocs/op

BenchmarkFastGenerator_GenerateRandomStr_EnglishAlphabetUppercase

BenchmarkFastGenerator_GenerateRandomStr_EnglishAlphabetUppercase-8     29051328                42.44 ns/op            1 allocs/op

BenchmarkFastGenerator_GenerateRandomStr_EnglishAlphabetBase62

BenchmarkFastGenerator_GenerateRandomStr_EnglishAlphabetBase62-8        41708664                29.78 ns/op            1 allocs/op

BenchmarkFastGenerator_GenerateRandomStr_EnglishAlphabetBase64

BenchmarkFastGenerator_GenerateRandomStr_EnglishAlphabetBase64-8        14275873                86.11 ns/op            1 allocs/op

```

## Original generate random string benchmark

You can reference original folder.