Re: Using map to produce side effects, not working

Also remember that `mapv` is not lazy and will force the map to run right away, which helps if side-effecty things like `println` are a part of the function. On Thu, Feb 7, 2019 at 10:54 AM Justin Smith wrote: > also do note that clojure.core/run! is designed for two-arg map when > it's only run

Re: Using map to produce side effects, not working

also do note that clojure.core/run! is designed for two-arg map when it's only run for side effects, and clojure.core/doseq is designed for nested side-effecting iteration On Thu, Feb 7, 2019 at 3:33 AM Pierpaolo Tofani wrote: > > Thanks ! Your diagnosis is correct. With two dorun works fine. > >

Re: Using map to produce side effects, not working

Just as a note, you should probably use `doseq` when you want to produce side effects. Erik. > On 7 Feb 2019, at 12:04, Pierpaolo Tofani wrote: > > Hi > i am new in clojure sorry. > In the snippet of code i used two map functions only to produce side effects > on two ref. > Even using doall

Re: Using map to produce side effects, not working

Thanks ! Your diagnosis is correct. With two dorun works fine. Il giorno giovedì 7 febbraio 2019 12:19:40 UTC+1, Orestis Markou ha scritto: > > Without having ran your code, it seems that the inner map is not wrapped > in a doall, so while the outer lazy-seq is forced, the inner is not. > > This

Re: Using map to produce side effects, not working

Without having ran your code, it seems that the inner map is not wrapped in a doall, so while the outer lazy-seq is forced, the inner is not. This might be of interest to you: http://clojure-doc.org/articles/language/laziness.html If you