RE: [flexcoders] Simple arithmetic - resolved
Math operations with normal numbers, such as 0/0 and Math.sqrt(-1), can also produce NaN. According to the ECMA-262 spec, NaN is a Number, despite its name meaning Not a Number: 4.3.20 Number Type The type Number is a set of values representing numbers. In ECMAScript, the set of values represents the double-precision 64-bit format IEEE 754 values including the special Not-a-Number (NaN) values, positive infinity, and negative infinity. The concept of NaN dates back at least to the IEEE 754 specification for binary floating-point arithmetic. - Gordon -Original Message- From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] Sent: Tuesday, April 19, 2005 4:09 AM To: flexcoders@yahoogroups.com Subject: RE: [flexcoders] Simple arithmetic - resolved Question - shouldn't this have thrown an error, since I was casting the non-number variable as a number in the parameter statement, as varX:Number? Flash is not checking types runtime, only compile time. And compile time everything is programmed right trace(!isNaN(NaN)); NaN is kind of its own type and is usually the result of an equation with a string or some other non-numeric type. Greetz Erik -Original Message- From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of JesterXL Sent: maandag 18 april 2005 21:53 To: flexcoders@yahoogroups.com Subject: Re: [flexcoders] Simple arithmetic - resolved A number is not a number? wtf, lol! trace(!isNaN(NaN)); // false ...crud, that means it is... but how can a number that's not a number be a number? I'm confused now... Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [flexcoders] Simple arithmetic - resolved
Solved - turns out I was applying a currency format to the variable before handing it to the function so it really was NaN. Question - shouldn't this have thrown an error, since I was casting the non-number variable as a number in the parameter statement, as varX:Number? - Tom At 04:43 PM 4/17/2005, you wrote: Manish and Abdul - Thanks. I'll keep looking... - Tom At 03:53 PM 4/17/2005, you wrote: I verified that the function returns correct values. You have a problem somewhere else. -- Yahoo! Groups Links * To visit your group on the web, go to: * http://groups.yahoo.com/group/flexcoders/http://groups.yahoo.com/group/flexcoders/ * * To unsubscribe from this group, send an email to: * mailto:[EMAIL PROTECTED][EMAIL PROTECTED] * * Your use of Yahoo! Groups is subject to the http://docs.yahoo.com/info/terms/Yahoo! Terms of Service. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [flexcoders] Simple arithmetic - resolved
On 4/18/05, Tom Fitzpatrick [EMAIL PROTECTED] wrote: Solved - turns out I was applying a currency format to the variable before handing it to the function so it really was NaN. Question - shouldn't this have thrown an error, since I was casting the non-number variable as a number in the parameter statement, as varX:Number? NaN is of type Number, AFAIK. -- [EMAIL PROTECTED] http://manish.revise.org/ Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [flexcoders] Simple arithmetic - resolved
A number is not a number? wtf, lol! trace(!isNaN(NaN)); // false ...crud, that means it is... but how can a number that's not a number be a number? I'm confused now... - Original Message - From: Manish Jethani [EMAIL PROTECTED] To: flexcoders@yahoogroups.com Sent: Monday, April 18, 2005 3:48 PM Subject: Re: [flexcoders] Simple arithmetic - resolved On 4/18/05, Tom Fitzpatrick [EMAIL PROTECTED] wrote: Solved - turns out I was applying a currency format to the variable before handing it to the function so it really was NaN. Question - shouldn't this have thrown an error, since I was casting the non-number variable as a number in the parameter statement, as varX:Number? NaN is of type Number, AFAIK. -- [EMAIL PROTECTED] http://manish.revise.org/ Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [flexcoders] Simple arithmetic - resolved
On 4/19/05, JesterXL [EMAIL PROTECTED] wrote: A number is not a number? wtf, lol! trace(!isNaN(NaN)); // false ...crud, that means it is... but how can a number that's not a number be a number? Okay, I'll avoid getting into any language discussion by saying that I really meant that NaN can be safely assigned to a Number reference without a cast. var x:Number = NaN; That may or may not mean that NaN is a Number. Pick up a Colin Moock book if you care to find out (I don't). It can be said that NaN is to Number as null is to Object (but I won't say it, because I already did). -- [EMAIL PROTECTED] http://manish.revise.org/ Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
