Question

When fiddling with redis gem I found #multi and #pipelined methods, which allow grouping operations, whose results are later returned as an array.

getresult, delresult = redis.multi do
  redis.get key
  redis.del key
end

I’d like to store getresult, and omit delresult. In Lua typical practice is to use _ as variable name for dropped values. Is there similar idiom in ruby?

Answer 1

It’s exactly the same. You use _ for ignored variables.

getresult, _ = redis.multi do
  redis.get key
  redis.del key
end