Where is the implementation of the function isNaN()?

[yangru...@gmail.com]

In the method Double.isNaN(), it uses the function isNaN() to fulfill the functionality.

I want to know where the  function isNaN() is implemented.

[Zhou Renjian]

isNaN is a native JavaScript function, implemented by JavaScript engine.

Regards,
Zhou Renjian

On Tue, Feb 26, 2013 at 3:38 PM, <yangru...@gmail.com> wrote:

In the method Double.isNaN(), it uses the function isNaN() to fulfill the functionality.

I want to know where the  function isNaN() is implemented.

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