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Answer by Volker for Why using `chan struct{}` when wait something done not...
The empty struct struct {} requires no memory. So if you have a channel with a large capacity you can save a few bytes by switching from make(chan bool, 1<<16) to make(struct {}, 1<<16)....
View ArticleAnswer by Jonathan Hall for Why using `chan struct{}` when wait something...
In your example of a 'done' channel, functionally speaking, the channel can be of literally any type, since no data is actually sent, and the channel is just used as a signaling mechanism. But in the...
View ArticleWhy using `chan struct{}` when wait something done not `chan interface{}`?
In golang, when we need to wait for something to finish, we will use a channel.example:done := make(chan struct{})go func() { // ... close(done)}()<-doneBut, in other way, chan interface{} also...
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