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Webmaster Forum / HTML, CSS, Scripts / JavaScript / November 2007Number to string??
Why is this converted to a string??? var newidNumber =((idNumber/2).toFixed())+1; Thanks Mike > Why is this converted to a string??? > var newidNumber =((idNumber/2).toFixed())+1; Because the - toFixed - method returns a string. > > Why is this converted to a string??? > > var newidNumber =((idNumber/2).toFixed())+1; > > Because the - toFixed - method returns a string. when you want to use the variable as a number use eval() to return a number > > > Why is this converted to a string??? > > > var newidNumber =((idNumber/2).toFixed())+1; [quoted text clipped - 3 lines] > when you want to use the variable as a number use eval() to > return a number No thanks, I will use the unary plus operator, the Number constructor called as a function, parseInt or parseFloat, depending on the situation. The - eval - function would be the absolute worst method to use, particularly as its behaviour is unpredictable whenever its argument is a string that does not represent a number. > > > > Why is this converted to a string??? > > > > var newidNumber =((idNumber/2).toFixed())+1; [quoted text clipped - 9 lines] > use, particularly as its behaviour is unpredictable whenever its > argument is a string that does not represent a number. You probably know more about Javascript, but I have been coding for about 2 years and the - eval - function has always worked for me. <snip> >>> when you want to use the variable as a number use eval() to >>> return a number <snip> >> ... . The - eval - function would be the absolute worst method to >> use, particularly as its behaviour is unpredictable whenever its >> argument is a string that does not represent a number. > > You probably know more about Javascript, You suggested using - eval - so we are well past "probably". > but I have been coding for about 2 years It might be an idea to stop and RTFM soonish. > and the - eval - > function has always worked for me. Even the worst ways of doing things 'work', otherwise they become the best ways of not doing them. > <snip> > >>> when you want to use the variable as a number use eval() to [quoted text clipped - 7 lines] > > You suggested using - eval - so we are well past "probably". There are such things as manners--this sentence was probably unnecessary. kendalk08 said the following on 11/28/2007 11:45 AM: >>> Why is this converted to a string??? >>> var newidNumber =((idNumber/2).toFixed())+1; >> Because the - toFixed - method returns a string. > > when you want to use the variable as a number use eval() to return a > number Who fed you that line of incompetent ignorant crap?  SignatureRandy Chance Favors The Prepared Mind comp.lang.javascript FAQ - http://jibbering.com/faq/index.html Javascript Best Practices - http://www.JavascriptToolbox.com/bestpractices/ > kendalk08 said the following on 11/28/2007 11:45 AM: > [quoted text clipped - 6 lines] > > Who fed you that line of incompetent ignorant crap? You mean you know a script engine where eval("2") doesn't return typeof "number"? Which one is that (non-ECMAScript compliant by default)? If you foresee some dangerous consequences of eval("2") in comparison of the +"2" trick then you should spell them for the public attention IMHO. After all eval is not a sex with underagers or drugs to get berserk on the combination of these four letters by itself, IMHO. VK said the following on 11/29/2007 12:33 AM: >> kendalk08 said the following on 11/28/2007 11:45 AM: >> [quoted text clipped - 7 lines] > You mean you know a script engine where eval("2") doesn't return > typeof "number"? Who said I did? I didn't. Anybody that uses eval(string) to convert string to a number is an incompetent ignorant idiot. > Which one is that (non-ECMAScript compliant by default)? ECMAScript, concern, mouses rear end. > If you foresee some dangerous consequences of eval("2") in comparison > of the +"2" trick then you should spell them for the public attention > IMHO. After all eval is not a sex with underagers or drugs to get > berserk on the combination of these four letters by itself, IMHO. Somewhere on this planet, your village misses you very much. SignatureRandy Chance Favors The Prepared Mind comp.lang.javascript FAQ - http://jibbering.com/faq/index.html Javascript Best Practices - http://www.JavascriptToolbox.com/bestpractices/ > > You mean you know a script engine where eval("2") doesn't return > > typeof "number"? > > Who said I did? I didn't. Anybody that uses eval(string) to convert > string to a number is an incompetent ignorant idiot. And anyone who uses instead +"2" trick instead is a highly intelligent experienced master who's even sh** smells just like roses? :-) Cool... Got it... Some men are so easy to please, really :-) VK said the following on 11/29/2007 3:28 PM: >>> You mean you know a script engine where eval("2") doesn't return >>> typeof "number"? [quoted text clipped - 3 lines] > And anyone who uses instead +"2" trick instead is a highly intelligent > experienced master who's even sh** smells just like roses? :-) Your village misses you terribly. SignatureRandy Chance Favors The Prepared Mind comp.lang.javascript FAQ - http://jibbering.com/faq/index.html Javascript Best Practices - http://www.JavascriptToolbox.com/bestpractices/ |
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