ISBN13 check digit: Difference between revisions
→{{header|langur}}
Langurmonkey (talk | contribs) |
Langurmonkey (talk | contribs) |
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Line 1,974:
.s -> re/^[0-9]{13}$/ and
fold(fn{+}, map [_, fn{*3}], s2n .s) div 10
}
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Langurmonkey (talk | contribs) |
Langurmonkey (talk | contribs) |
||
Line 1,974:
.s -> re/^[0-9]{13}$/ and
fold(fn{+}, map [_, fn{*3}], s2n .s) div 10
}
| |||
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