nappend-as ( n exemplar -- seq ) - Factor Documentation

nappend-as ( n exemplar -- seq )
Generalized sequence words

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Vocabulary
sequences.generalizations

Inputs

n	an integer
exemplar	a sequence

Outputs

seq	a sequence

Word description
Outputs a new sequence of type exemplar consisting of the elements of the top n sequences from the datastack in turn.

Errors
Throws an error if any of the sequences contain elements that are not permitted in the sequence type of the first sequence.

Examples

USING: math prettyprint sequences.generalizations ; { 1 2 } { 3 4 } { 5 6 } { 7 8 } 4 V{ } nappend-as .
V{ 1 2 3 4 5 6 7 8 }