映射/缩小/过滤器/等的惯用替换

Question

I have a list of things in a go program. I want to loop over them, and perform some operation on/with a subset of those things. Is there more elegant/idiomatic code for doing this than the following?

for key, value := range listOfThings {
    if(!value.Enabled) {
        continue;
    }

    doTheThing(key, value)
}

The large context -- I'm coming from languages where map/reduce/filter/etc are popular patterns for this sort of thing, but word on the internet is that those sorts of higher level abstractions aren't really a go-ish thing to do.

Is there something more elegant than guard/continue clauses in my range blocks for this sort of code?

Answer 1

Simple apply/filter/reduce package.

I wanted to see how hard it was to implement this sort of thing in Go, with as nice an API as I could manage. It wasn't hard.

Having written it a couple of years ago, I haven't had occasion to use it once. Instead, I just use "for" loops.

You shouldn't use it either.

Rob Pike

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Follow Rob's advice. Use for loops.