30 lines
1.2 KiB
Factor
Executable File
30 lines
1.2 KiB
Factor
Executable File
USING: help.syntax help.markup kernel prettyprint sequences
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quotations math ;
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IN: sequences.lib
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HELP: map-withn
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{ $values { "seq" sequence } { "quot" quotation } { "n" number } { "newseq" sequence } }
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{ $description "A generalisation of " { $link map } ". The first " { $snippet "n" } " items after the quotation will be "
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"passed to the quotation given to map-withn for each element in the sequence."
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}
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{ $examples
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{ $example "USING: math sequences.lib prettyprint ;" "1 2 3 4 { 6 7 8 9 10 } [ + + + + ] 4 map-withn .s" "{ 16 17 18 19 20 }" }
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}
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{ $see-also each-withn } ;
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HELP: each-withn
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{ $values { "seq" sequence } { "quot" quotation } { "n" number } }
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{ $description "A generalisation of " { $link each } ". The first " { $snippet "n" } " items after the quotation will be "
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"passed to the quotation given to each-withn for each element in the sequence."
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}
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{ $see-also map-withn } ;
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HELP: randomize
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{ $values { "seq" sequence } { "seq'" sequence } }
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{ $description "Shuffle the elements in the sequence randomly, returning the new sequence." } ;
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HELP: enumerate
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{ $values { "seq" sequence } { "seq'" sequence } }
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{ $description "Returns a new sequence where each element is an array of { index, value }" } ;
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