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This internal function returns a Boolean value indicating whether the function object is the prototype of an instance object that is passed as an argument. If it is, then the function returns true.
This is an internal function very similar to the Object.isPrototypeOf() method.
| See also: | Object.isPrototypeOf() |
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JavaScript Programmer's Reference, Cliff Wootton Wrox Press (www.wrox.com) Join the Wrox JavaScript forum at p2p.wrox.com Please report problems to support@wrox.com © 2001 Wrox Press. All Rights Reserved. Terms and conditions. | ||