execute action while the given condition is is not false or null

---

Parameters

while condition :null :block :bytecode
      action :block :bytecode

Returns

Examples

copy
i: 0 
while [i<10][
    print ["i =>" i] 
    i: i + 1
]

; i => 0 
; i => 1 
; i => 2 
; i => 3 
; i => 4 
; i => 5 
; i => 6 
; i => 7 
; i => 8 
; i => 9 

while ø [
    print "something"   ; infinitely
]

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