core

README

Core Intro

All common core infrastructure and constants combined package.

Git Clone

git clone https://gitlab.com/evatix-go/core.git

2FA enabled, for linux

git clone https://[YourGitLabUserName]:[YourGitlabAcessTokenGenerateFromGitlabsTokens]@gitlab.com/evatix-go/core.git

Prerequisites

• Update git to latest 2.29
• Update or install the latest of Go 1.15.2
• Either add your ssh key to your gitlab account
• Or, use your access token to clone it.

Installation

go get gitlab.com/evatix-go/core

Go get issue for private package

• Update git to 2.29
• Enable go modules. (Windows : go env -w GO111MODULE=on, Unix : export GO111MODULE=on)
• Add gitlab.com/evatix-go to go env private

To set for Windows:

go env -w GOPRIVATE=[AddExistingOnes;]gitlab.com/evatix-go

To set for Unix:

expoort GOPRIVATE=[AddExistingOnes;]gitlab.com/evatix-go

Why core?

It makes our other go-packages DRY and concise.

Examples Videos

• Core Basics Intro
• Core Usage Video

Examples

package main

import (
	"fmt"
	"gitlab.com/evatix-go/core/conditional"
	"gitlab.com/evatix-go/core/constants"
	"gitlab.com/evatix-go/core/converters"
	"gitlab.com/evatix-go/core/coredata/corestr"
	"gitlab.com/evatix-go/core/coremath"
	"gitlab.com/evatix-go/core/issetter"
)

func main() {
	// substituting functions as ternary operator
	fmt.Println(conditional.Int(true, 2, 7))  // 2
	fmt.Println(conditional.Int(false, 2, 7)) // 7

	// making collection from array of strings
	stringValues := []string{"hello", "world", "something"}
	collectionPtr1 := corestr.NewCollectionPtrUsingStrings(&stringValues, constants.Zero)
	fmt.Println(collectionPtr1)
	/* outputs:
	   - hello
	   - world
	   - something
	*/

	// different methods of collection
	fmt.Println(collectionPtr1.Length())  // 3
	fmt.Println(collectionPtr1.IsEmpty()) // false

	// adding more element including empty string
	collectionPtr2 := collectionPtr1.AddsLock("else")
	fmt.Println(collectionPtr2.Length()) // 4

	// checking equality
	fmt.Println(collectionPtr1.IsEqualsPtr(collectionPtr2)) // true

	// creating CharCollectionMap using collection
	sampleMap := collectionPtr1.CharCollectionPtrMap()
	fmt.Println(sampleMap)

	// methods on CharCollectionMap
	fmt.Println(sampleMap.Length())        // 4
	fmt.Println(sampleMap.AllLengthsSum()) // 4
	fmt.Println(sampleMap.Clear())         // prints: # Summary of `*corestr.CharCollectionMap`, Length ("0") - Sequence `1`
	otherMap := sampleMap.Add("another")
	fmt.Println(otherMap)
	/* prints:
	# Summary of `*corestr.CharCollectionMap`, Length ("1") - Sequence `1`
	        1 . `a` has `1` items.
	## Items of `a`
	        - another
	*/

	// declaring an empty hashset of length 2 and calling methods on it
	newHashSet := corestr.NewHashset(2)
	fmt.Println(newHashSet.Length())  // 2
	fmt.Println(newHashSet.IsEmpty()) // true
	fmt.Println(newHashSet.Items())   // &map[]

	// adding items to hashset
	strPtr := "new"
	newHashSet.AddPtr(&strPtr)
	fmt.Println(newHashSet.Items()) // &map[new:true]

	// adding map to hashset
	newHashSet.AddItemsMap(&map[string]bool{"hi": true, "no": false})
	fmt.Println(newHashSet.Items()) // &map[hi:true new:true]

	// math operations: getting the larger/smaller value from two given values
	fmt.Println(coremath.MaxByte('e', 'i')) // 105 which represents 'i' in ASCII
	fmt.Println(coremath.MinByte(23, 5))    // 5

	// initializing issetter value
	isSetterValue := issetter.False             // initializing as false
	fmt.Println(isSetterValue.HasInitialized()) // true
	fmt.Println(isSetterValue.Value())          // 2
	fmt.Println(isSetterValue.IsPositive())     // false

	// sorting strings
	fruits := []string{"banana", "mango", "apple"}
	fmt.Println(strsort.Quick(&fruits))    // &[apple banana mango]
	fmt.Println(strsort.QuickDsc(&fruits)) // &[mango banana apple]

	// converting pointer strings to strings
	mile := "mile"
	km := "km"
	measures := []*string{&mile, &km}
	fmt.Println(converters.PointerStringsToStrings(&measures))           // &[mile km]
	fmt.Printf("Type %T", converters.PointerStringsToStrings(&measures)) // Type *[]string

	// comparing two int arays
	Values := []int{1, 2, 3, 4}
	OtherValues := []int{5, 6, 7, 8}
	fmt.Println(corecompare.IntArray(Values, OtherValues)) // false
}

Acknowledgement

Any other packages used

Links

• go - Calling a method on a nil struct pointer doesn't panic. Why not? - Stack Overflow
• Array of pointers to JSON - Stack Overflow
• Json Parsing of Array Pointers
• Go Slice Tricks Cheat Sheet
• SliceTricks · golang/go Wiki
• ueokande/go-slice-tricks: Cheat Sheet for Go Slice Tricks
• Quick Sort in Go (Golang) - golangprograms.com
  • Sorting using golang lib
  • Pointer Strings Sort
• Golang Array process issue without copying (!Important)
• Linked List | Set 2 (Inserting a node) - GeeksforGeeks
• Go Data Structures: Linked List
• System info -Stackoverflow Centos detect

Issues

• Create your issues

Notes

Contributors

License

Evatix MIT License

Documentation

Index

• func EmptyAnysPtr() *[]interface{}
• func EmptyBoolsPtr() *[]bool
• func EmptyBytePtr() *[]byte
• func EmptyFloat32Ptr() *[]float32
• func EmptyFloat64Ptr() *[]float64
• func EmptyIntsPtr() *[]int
• func EmptyPointerStringsPtr() *[]*string
• func EmptyStringToIntMapPtr() *map[string]int
• func EmptyStringsMapPtr() *map[string]string
• func EmptyStringsPtr() *[]string
• func PointerStringsPtrByCapacity(length, cap int) *[]*string
• func StringsPtrByCapacity(length, cap int) *[]string
• func StringsPtrByLength(length int) *[]string

Functions

func EmptyAnysPtr

func EmptyAnysPtr() *[]interface{}

func EmptyBoolsPtr

func EmptyBoolsPtr() *[]bool

func EmptyBytePtr

func EmptyBytePtr() *[]byte

func EmptyFloat32Ptr

func EmptyFloat32Ptr() *[]float32

func EmptyFloat64Ptr

func EmptyFloat64Ptr() *[]float64

func EmptyIntsPtr

func EmptyIntsPtr() *[]int

func EmptyPointerStringsPtr

func EmptyPointerStringsPtr() *[]*string

func EmptyStringToIntMapPtr

func EmptyStringToIntMapPtr() *map[string]int

func EmptyStringsMapPtr

func EmptyStringsMapPtr() *map[string]string

func EmptyStringsPtr

func EmptyStringsPtr() *[]string

func PointerStringsPtrByCapacity

func PointerStringsPtrByCapacity(length, cap int) *[]*string

func StringsPtrByCapacity

func StringsPtrByCapacity(length, cap int) *[]string

func StringsPtrByLength

func StringsPtrByLength(length int) *[]string