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GET returning only true params (Clojure)


GET returning only true params (Clojure)

By : Tony
Date : January 11 2021, 03:34 PM
Does that help Assuming @profiles is a map where values are profiles, then you can return only profiles where :public-profile is true with filter. For example:
code :
(filter
  (fn [profile] (:public-profile profile))
  (vals @profiles))
(filter :public-profile (vals @profiles))


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Code that return True if only one or two of three params are true

Code that return True if only one or two of three params are true


By : Russel
Date : March 29 2020, 07:55 AM
To fix this issue I need a code that return True if only one or two of three params are true , I'm addicted to this question!
code :
bool MyFourthAnswer(bool a, bool b, bool c)
{
   return (a != b) || (b != c);
}
Rails with Devise: current_user.id == params[:id], returning false, should be true

Rails with Devise: current_user.id == params[:id], returning false, should be true


By : Sataish
Date : March 29 2020, 07:55 AM
may help you . I have a Rails app using Devise. I'm trying to have an If statement on my view page, but for some reason I am not getting a return of true. See below... , try this:
code :
current_user.id.to_s == params[:id].to_s
Clojure: clojure.lang.ArityException when returning map from reader macro function

Clojure: clojure.lang.ArityException when returning map from reader macro function


By : zgrnt
Date : March 29 2020, 07:55 AM
wish help you to fix your issue I can return a map from function with following syntax , You can use hash-map:
code :
(def retmap #(hash-map :foo %))
(macroexpand `#({:foo %}))
=> (fn* [x] ({:foo x}))
Recursion with Clojure and Clojure for the Brave and True

Recursion with Clojure and Clojure for the Brave and True


By : user7431944
Date : March 29 2020, 07:55 AM
With these it helps In clojure you can define a function such that it can take different numbers of arguments e.g.
code :
(defn foo []
  ....)
(foo)

(defn foo [x]
  ...)
(foo :a)
(defn foo
  ([] ;no argument form 
    ...)
  ([x] ;single argument form
    ...))
(defn recursive-printer
    ([] ; zero argument form
        (recursive-printer 0))
    ([iteration] ; 1 argument form
        (println iteration)
        (if (> iteration 3)
            (println "Bye!")
            (recursive-printer (inc iteration)))))

(recursive-printer)
Clojure returning simple true or false from a function

Clojure returning simple true or false from a function


By : guanghuiz
Date : March 29 2020, 07:55 AM
With these it helps There is no analogue of return in clojure. Clojure function bodies are expressions so you need to organise your function to evaluate to true or false for each case.
In this case you don't need to use if at all:
code :
(defn checkPositiveNumber [x y]
  (and (> x 0) (> y 0)))
(defn checkPositiveNumber [x y]
   (if (and (> x 0) (> y 0)))
     (do
       (println "x and y both positive")
       true)
     (do
       (println "One of x or y non-positive")
       false)))
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