predicate? ( object -- ? )
Factor handbook » The language » Objects » Classes » Class predicate words

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Vocabulary
classes

Inputs and outputs

object	an object
?	a boolean

Word description
Tests if the object is an instance of the predicate class.

Definition

USING: kernel words ;

IN: classes

: predicate? ( object -- ? )
    dup word? [ "predicating" word-prop >boolean ] [ drop f ] if
    ;