slobber / go2linq

Generic Go implementation of .NET's LINQ to Objects.

go2linq

go2linq is Go implementation of .NET's LINQ to Objects. (See also: Language Integrated Query, LINQ, Enumerable Class.)

go2linq is inspired by Jon Skeet's Edulinq series.

Since go2linq uses generics it requires at least Go 1.18. Use go1.18rc1 or gotip to experiment with go2linq.

---

Examples

Examples of go2linq usage are in the Example... functions in test files (see Examples).

Quick and easy example:

//go:build go1.18

package main

import (
	"fmt"

	"github.com/solsw/go2linq/v2"
)

func main() {
	filter := go2linq.WhereMust(
		go2linq.NewEnSlice(1, 2, 3, 4, 5, 6, 7, 8),
		func(i int) bool { return i > 6 || i%2 == 0 },
	)
	squares := go2linq.SelectMust(
		filter,
		func(i int) string { return fmt.Sprintf("%d: %d", i, i*i) },
	)
	enr := squares.GetEnumerator()
	for enr.MoveNext() {
		square := enr.Current()
		fmt.Println(square)
	}
}

The previous code prints the following:

2: 4
4: 16
6: 36
7: 49
8: 64