|dup[

Function: |dup[ do{ [] -> [] [] }

file: 10-C-utils.t
package: muf
status: alpha

Push a duplicate of the given block on the stack.

Stack:
[ 'a' 'b' 'c' |
Stack: [ 'a' 'b' 'c' |
|dup[
Stack: [ 'a' 'b' 'c' | [ 'a' 'b' 'c' | 

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