3 Examples top

• link | changes

  user=> (coll? {})
  true
  
  user=> (coll? #{})
  true
  
  user=> (coll? [])
  true
  
  user=> (coll? ())
  true
  
  user=> (coll? 4)
  false
  
  user=> (coll? "fred")
  false
  
  user=> (coll? true)
  false
  
  user=> (coll? nil)
  false
  

  user=> (coll? {}) true user=> (coll? #{}) true user=> (coll? []) true user=> (coll? ()) true user=> (coll? 4) false user=> (coll? "fred") false user=> (coll? true) false user=> (coll? nil) false
• link | changes

  user=> (coll? {:a 10 :b 20}) ; map is a collection of map-entries
  true

  user=> (coll? {:a 10 :b 20}) ; map is a collection of map-entries true
• link | changes

  ;; contrast to example code for sequential?
  ;;
  user> (coll? '(1 2 3))
  true
  user> (coll? [1 2 3])
  true
  user> (coll? (range 1 5))
  true
  user> (coll? 1)
  false
  user> (coll? {:a 2 :b 1})   
  true
  user> (coll? {:a 2 :b 1})  ; in contrast to sequential?, coll? returns true for a hash map
  true
  user> (sequential? {:a 2 :b 1})
  false

  ;; contrast to example code for sequential? ;; user> (coll? '(1 2 3)) true user> (coll? [1 2 3]) true user> (coll? (range 1 5)) true user> (coll? 1) false user> (coll? {:a 2 :b 1}) true user> (coll? {:a 2 :b 1}) ; in contrast to sequential?, coll? returns true for a hash map true user> (sequential? {:a 2 :b 1}) false