Basic HTML version of Foils prepared 3 March 99

Foil 62 Number Properties (cont'd)

From Overview of JavaScript I -- Basic Web Scripting Language CPS616 Technologies of the Information Age -- Spring Semester 99. by Geoffrey C. Fox (Tom Scavo)
Number.NaN is returned by parseInt(...) and parseFloat(...) when the parsing operation fails
An attempt to divide by zero also returns Number.NaN
Test for Number.NaN using the global boolean function isNaN()
Note: NN2.0 and MSIE3.0 do not support Number.NaN!

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