loop through collection, using given iterator and block

Parameters

loop collection :integer :string :dictionary :object :inline :block :range
     params :null :literal :block
     action :block :bytecode

Attributes

Returns

Examples

copy
loop [1 2 3] 'x [
    print x
]
; 1
; 2
; 3

copy
loop 1..3 [x][
    print ["x =>" x]
]
; x => 1
; x => 2
; x => 3

copy
loop [A a B b C c] [x y][
    print [x "=>" y]
]
; A => a
; B => b
; C => c

copy
user: #[
    name: "John"
    surname: "Doe"
]

loop user [k v][
    print [k "=>" v]
]
; name => John
; surname => Doe

copy
loop.with:'i ["zero" "one" "two"] 'x [
    print ["item at:" i "=>" x]
]
; 0 => zero
; 1 => one
; 2 => two

copy
loop.forever [1 2 3] => print
; 1 2 3 1 2 3 1 2 3 ...

Related