errgroup package - golang.org/x/sync/errgroup - Go Packages

Tips for writing clear, performant, and idiomatic Go code

[hasiduki]

便利っぽ！！！もっと早く知ってたかった！！！！

[ngsw]

よさそう

[Jxck]

"errgroup provides synchronization, error propagation, and Context cancelation for groups of goroutines"

[mattn]

並列処理に特化したContext。Exampleが分かりやすい。