从数组创建通道

Question

What is the simplest way to add all the elements of an array to a channel?

I can do this:

elms := [3]int{1, 2, 3}
c := make(chan int, 3)

for _, e := range elms {
    c <- e
}

But I wonder if there is a syntactic sugar for this.

Answer 1

Code should be correct, maintainable, robust, reasonably efficient, and, most importantly, readable.

By design, Go is simple, but powerful. Everybody can read and memorize the specification: The Go Programming Language Specification. You can learn Go in a day or so. The simplicity makes Go code very readable.

The complexity of syntactic sugar induces cognitive overload. After working alongside Bjarne Stroustrup (C++) and Guido van Rossum (Python), the Go authors deliberately avoided syntactic sugar.

Read Bjarne Stroustrup's recent lament about the complexity of C++: Remember the Vasa!.

It's easy to see what this code does:

package main

func main() {
    elms := [3]int{1, 2, 3}
    c := make(chan int, len(elms))
    for _, elm := range elms {
        c <- elm
    }
}