Change NaN detection in isValid to work in Safari

[marcprux]

Safari doesn't implement Number.isNaN (see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isNaN), so re-implemented it with a combination is global isNaN (which performs type coercion) and checking to see if object is a number.

[jheer]

Thanks, looks good accept that obj === obj could provide a faster NaN check. What about: obj != null && obj === obj?

[marcprux]

Sounds good to me.

- Marc

On May 27, 2015, at 2:09 AM, Jeffrey Heer notifications@github.com wrote:

Thanks, looks good accept that obj === obj could provide a faster NaN check. What about: obj != null && obj === obj?

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