function
boot.janet on line 2231, column 1
(all pred ind & inds)
Returns true if applying `pred` to every value in a data structure
`ind` results in only truthy values, but only if no `inds` are
provided. Multiple data structures can be handled if each `inds` is
a data structure and `pred` is a function of arity one more than
the number of `inds`. Returns the first falsey result encountered.
Note that `pred` is only called as many times as the length of the
shortest of `ind` and each of `inds`. If `ind` or any of `inds` are
empty, returns true.
# janet 1.10.1
(all pos? [1 2 3]) # => true
(all pos? [1 2 3 -4]) # => false
(all pos? [1 2 3 0]) # => false
(all (partial string/has-prefix? "a") ["aa" "ab"]) # => true
(all (partial string/has-prefix? "a") ["aa" "ab" "bb"]) # => false
(all truthy? [1 2]) # => true
(all truthy? [1 2 3]) # => true
(all truthy? [1 2 nil 3]) # => false
(all truthy? [1 false 2 nil 3]) # => false
(all (fn [x] x) [1 2]) # => 2
(all (fn [x] x) [1 2 3]) # => 3
(all (fn [x] x) [1 2 nil 3]) # => nil
(all (fn [x] x) [1 false 2 nil 3]) # => false
janet:2:> (all true? [true true false])
false
janet:3:> (all even? [2 4 6 7])
false
janet:5:> (all even? [2 4 6])
true