function
boot.janet on line 132, column 1
(idempotent? x)
Check if x is a value that evaluates to itself when compiled.
(map idempotent? [ nil true 97 'a :a "a" ])
# => @[ true true true true true true ]
(map idempotent? [ [97] @[97] {0 97} @{0 97} ])
# => @[ false false false false ]
(map idempotent? [ (fn []) even? loop file/open ])
# => @[ true true true true ]
(map idempotent? [ (file/temp) (fiber/new (fn [])) ])
# => @[ true true ]