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 KASH3 Reference Manual
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Function

First ( func pred ) -> func fir

Optional Arguments

FailanyDetermines what to return in case of failure.

Description

Construct a functional `fir(<list> l) -> any' which finds and returns the first element which suffices the predicate function `pred' and returns it.
Note: Apparently `pred' must have `-> elt-alg^boo' out-signature.

Examples

l:=[Random(1000)..1000+Random(1000)]; f:=First(i->i mod 17=0); l; f(l);

See also

Last ( func ) -> func

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