Golang concurrency

Mon, 28 Sep 2026 00:39:34 +0545

Few notes from this article and exploration.

Sending through channel is synchronous. This means it blocks if channel is full.

A common pattern: making a channel and returning it; instead of returning value returning the channel and pushing the value into the channel.

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func generate(start, stop int) chan int {
 out := make(chan int)
 go func() {
 for i := start; i < stop; i++ {
 out <- i
 }
 }()
 return out
}

To close a channel: defer close(channel); A channel can only be closed once. GC will collect a channel regardless of it is closed or not (if it is not referenced).

Garbage Collection on aayushprime

Golang concurrency