go-linq

.NET's Language Integrated Query (LINQ) library for Go

Query and manipulate Go slices and collections using SQL-like methods.
Written in pure Go with no dependencies, tested with 100% code coverage.

Basic

Find average age of students over 20.

Import your `[]Student`.	`results := From(students).`
Find those over 20. So we make type assertion to our input type.	`Where(func (s interface{}) bool { return s.(Student).age >= 20 }).`
Select their ages.	`Select(func (s interface{}) interface{} { return s.(Student).age }).`
Find the average.	`Average()`

Concurrent

Count websites that have a favicon.ico.

	`urls := make(chan interface{}) results := make(chan interface{})`
Convert domain names to full URLs.	`go func(domains []string) { From(domains).Select(func(d interface{}) interface{} { return fmt.Sprintf("http://%s/favicon.ico", d) }).ToChannel(urls) }(domains)`
Let's run the following in parallel. Request favicon for each domain.	`go func() { defer close(results) var wg sync.WaitGroup for url := range urls { wg.Add(1) go func(url string) { defer wg.Done() resp, _ := http.Get(url) results <- resp.StatusCode }(url.(string)) } wg.Wait() }()`
Count websites.	`FromChannel(results).CountWith(func(r interface{}) bool { return r.(int) == 200 })`

About

If you have suggestions or improvements, feel free to contact or submit a pull request. All contributions are welcomed.

This library is brought you by Alexander (kalan) Kalankhodzhaev and @ahmetalpbalkan.