|first

Function: |first do{ [] -> [] arg }

file: job.t
package: muf
status: alpha

Returns first (leftmost/bottommost) element of stackblock. Exactly equivalent to 0 |dupNth.

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

See section |dupNth.

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