Flex

A Golang library to make development easier and more efficient

Getting Started

Prerequisites

Flex requires Go version 1.18 or above.

Getting Flex

With Go's module support, go [build|run|test] automatically fetches the necessary dependencies when you add the import in your code:

import "github.com/biocrosscoder/flex"

Alternatively, use go get:

go get -u github.com/biocrosscoder/flex

The package path above is not actually used in the code, use the following pacakge paths when necessary:

• github.com/biocrosscoder/flex/itertools
• github.com/biocrosscoder/flex/functools
• github.com/biocrosscoder/flex/collections
• github.com/biocrosscoder/flex/collections/arraylist
• github.com/biocrosscoder/flex/collections/linkedlist
• github.com/biocrosscoder/flex/collections/queue
• github.com/biocrosscoder/flex/collections/set
• github.com/biocrosscoder/flex/collections/dict
• github.com/biocrosscoder/flex/collections/orderedcontainers
• github.com/biocrosscoder/flex/typed/itertools
• github.com/biocrosscoder/flex/typed/functools
• github.com/biocrosscoder/flex/typed/collections
• github.com/biocrosscoder/flex/typed/collections/arraylist
• github.com/biocrosscoder/flex/typed/collections/linkedlist
• github.com/biocrosscoder/flex/typed/collections/queue
• github.com/biocrosscoder/flex/typed/collections/set
• github.com/biocrosscoder/flex/typed/collections/dict
• github.com/biocrosscoder/flex/typed/collections/orderedcontainers
• github.com/biocrosscoder/flex/typed/collections/sortedcontainers
• github.com/biocrosscoder/flex/typed/collections/sortedcontainers/sortedlist

Running Flex

Example 1: Remove duplicates from a slice

package main

import (
	"fmt"
	"github.com/biocrosscoder/flex/typed/collections/orderedcontainers"
	"math/rand"
)

func main() {
	arr := make([]int, 20)
	for i := 0; i < 20; i++ {
		arr[i] = rand.Intn(10)
	}
	fmt.Println("Original array:", arr)
	rd := orderedcontainers.NewOrderedSet(arr...).Elements()
	fmt.Println("Removed duplicates: ", rd)
}

Example 2: Sort a slice of complicated structures

package main

import (
	"fmt"
	"github.com/biocrosscoder/flex/typed/functools"
	"math/rand"
)

func main() {
	arr := make([][]int, 10)
	for i := 0; i < 10; i++ {
		arr[i] = []int{rand.Intn(5), rand.Intn(5)}
	}
	fmt.Println("Before sorting:", arr)
	f1 := func(x, y []int) int {
		return x[0] - y[0]
	}
	f2 := func(x, y []int) int {
		return y[1] - x[1]
	}
	functools.Sort(arr, f1, f2)
	fmt.Println("After sorting: ", arr)
}

Features

1. itertools provide a series of functions to create iterators.
2. functools provide a series of functions to support functional programming.
3. collections provide a series of powerful and practical containers to store and manipulate data.
4. typed provide itertools, functools and collections with generics support.
5. This library mainly refers to Python and JavaScript, considering the feature of Golang as well.

ToDo List

1. Robustness: Improve the coverage of unit tests.
2. Functionality: Provide more practical functions in functools for manipulating sequences (slice/array/string).
3. Feature: Add concurrent programming support.
   1. A flexible and light-weight event-loop mechanism.
   2. A simple and light-weight Goroutine pool.
   3. Concurrency Safety map and slice.
   4. A structure to support chain syntax for concurrent programming just like Promise in JavaScript.
   5. A structure to support behavioral control like Proxy in JavaScript.
   6. A simple and light-weight Generator mechanism.
4. Feature: Make Programming in Golang happier!
   1. Safe goroutine: auto recovered from panic.
   2. Auto return: say goodbye to if err != nil.