Go lang utilities for slices, randomstring, substring, file move etc.
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README.md

Golang Utilities

Installation

go get git.teknoku.digital/teknoku/go-utils

Available Utils

Take a look on demo source.

package mypackage

import (
	"fmt"
	"git.teknoku.digital/teknoku/go-utils/utils"
)

func main() {
	fmt.Printf("RandString: %v\n", utils.RandString(20))
	fmt.Printf("RandStringWithCharset: %v\n", utils.RandStringWithCharset(20,"abc123efg456"))
	fmt.Printf("RandStringLower: %v\n", utils.RandStringLower(20))
	fmt.Printf("RandomHex: %v\n",utils.RandomHex(16))
	fmt.Printf("RandomHexUpper: %v\n",utils.RandomHexUpper(16))
	ranString := utils.RandStringUpper(10)
	fmt.Printf("RandStringUpper: %v\n",ranString) // 'ea10a9c919'

	fmt.Printf("Substring: %v\n", utils.Substring(ranString,2)) // '10a9c919'
	fmt.Printf("Substring: %v\n", utils.Substring(ranString,1,8)) // 'a10a9c9'
	fmt.Printf("Substring: %v\n", utils.Substring(ranString,6,2)) // ''
	fmt.Printf("Substring: %v\n", utils.Substring(ranString,10,15)) // ''
	fmt.Printf("Substring: %v\n", utils.Substring(ranString,-1,5)) // ''
	fmt.Printf("Substring: %v\n", utils.Substring(ranString,5,10)) // '9c919'

	arr := []int{ 1,2,3,4,5 }
	fmt.Printf("Array Before: %v\n", arr)
	utils.Slice.RemoveAt(&arr, 3) // Remove slice at index
	fmt.Printf("Array After 1: %v\n", arr)
	utils.Slice.AddTo(&arr, 4, 3)  // Add data to index 3
	fmt.Printf("Array After 2: %v\n", arr)
	utils.Slice.AddTo(&arr, 25, 1) // Add data to index 1
	fmt.Printf("Array After 3: %v\n", arr)
	utils.Slice.AddTo(&arr, 100) // Add data without specify index, will be added to last index
	fmt.Printf("Array After 4: %v\n", arr)
	utils.Slice.AddTo(&arr, -5) // Add data with minus index, will be added to first index which is treated as 0
	fmt.Printf("Array After 5: %v\n", arr)
	i := utils.Slice.Exist(&arr, 9)
	fmt.Println("Exist",i)
	j := utils.Slice.Exist(&arr, 100)
	fmt.Println("Exist",j)

	utils.FileMove("/root/project/filename","/root/project/newname", os.ModePerm) // Move file from path to path
	utils.FileMove("/root/project/oldfolder/","/root/project/newfolder/", os.ModePerm, "filename") // Move file from to new location with same name
	utils.FileMove("/root/project/oldfolder/","/root/project/newfolder/", os.ModePerm, "filename", "newname") // Move file from to new location with new name

	arrDuplicate := []int{1,0,0,2,3,2,4,5,6,7,4,4,7,4,7,7,7,15}
	fmt.Println(arrDuplicate)
	utils.Slice.Uniquify(&arrDuplicate)
	fmt.Println(arrDuplicate)

	objArr := []map[string]int{
		{"id": 4, "num": 2}, {"id": 3, "num": 9}, {"id": 0, "num": 1}, {"id": 8, "num": 2},
	}
	fmt.Printf("Where: %v\n", utils.Slice.Where(objArr, func(i int) bool {
		return objArr[i]["num"] == 2
	})) // Get all value in slice with condition

	fmt.Printf("First: %v\n", utils.Slice.First(objArr)) // Get first value in slice
	fmt.Printf("IndexOf: %v\n", utils.Slice.IndexOf(arrDuplicate, 15)) // Find first index of value in slice
	fmt.Printf("FirstWhere: %v\n", utils.Slice.FirstWhere(objArr, func(i int) bool {
		return objArr[i]["num"] == 9
	})) // Get first value in slice with given condition
	fmt.Printf("IndexWhere: %v\n", utils.Slice.IndexWhere(objArr, func(i int) bool {
		return objArr[i]["id"] == 0
	})) // Get first index in slice with given condition

	fmt.Printf("Last: %v\n", utils.Slice.Last(objArr)) // Get first value in slice
	fmt.Printf("LastIndexOf: %v\n", utils.Slice.LastIndexOf(arrDuplicate, 0)) // Find last index of value in slice
	fmt.Printf("LastWhere: %v\n", utils.Slice.LastWhere(objArr, func(i int) bool {
		return objArr[i]["id"] == 4
	})) // Get last value in slice with given condition
	fmt.Printf("LastIndexWhere: %v\n", utils.Slice.LastIndexWhere(objArr, func(i int) bool {
		return objArr[i]["num"] == 2
	})) // Get last index in slice with given condition
}