Optional parameters: Difference between revisions
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→{{header|Wren}}: Sort.reverse is now Lst.reverse.
Drkameleon (talk | contribs) |
m (→{{header|Wren}}: Sort.reverse is now Lst.reverse.) |
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=={{header|Wren}}==
{{libheader|Wren-sort}}
{{libheader|Wren-seq}}
Wren doesn't support optional parameters as such but does support method overloading by ''arity'' (i.e. number of parameters) which makes it easy to simulate them.
<lang ecmascript>import "./sort" for Cmp, Sort
import "./seq" for Lst
class TableSorter {
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if (ordering == null) ordering = Fn.new { |r1, r2| Cmp.string.call(r1[column], r2[column]) }
var sorted = Sort.merge(table, ordering)
if (reverse)
return sorted
}
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