This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Echekwara usoro a. Biko jụọ ajụjụ ọhụrụ ma ọ bụrụ na ị chọrọ enyemaka.

toString method for a number returns 'undefined'

netgecko99
netgecko99
more options

The toString method for a Number object is returning the string 'undefined' (a string literal, not the undefined object) instead of the string representation of the number in question. This can be tested with a literal:

(5).toString();

Or with a variable:

var test = 5; test.toString();

And occurs in both in code running on a page, in the built-in JS console, and in Firebug, with Firefox versions 40.0.3 and 41.0. Expected result would be the string literal "5". (Which is exactly what I get with other browsers.)

This does not conform to the spec located here: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toString

Is this a known defect? If so, is there a recommended workaround?

UPDATE: Looks like this is specific to a particular site, so I presume the client has implemented something that overrides the toString method. Feel free to close and ignore this request.

The toString method for a Number object is returning the string 'undefined' (a string literal, not the undefined object) instead of the string representation of the number in question. This can be tested with a literal: (5).toString(); Or with a variable: var test = 5; test.toString(); And occurs in both in code running on a page, in the built-in JS console, and in Firebug, with Firefox versions 40.0.3 and 41.0. Expected result would be the string literal "5". (Which is exactly what I get with other browsers.) This does not conform to the spec located here: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toString Is this a known defect? If so, is there a recommended workaround? UPDATE: Looks like this is specific to a particular site, so I presume the client has implemented something that overrides the toString method. Feel free to close and ignore this request.

Edeziri site na netgecko99

All Replies (1)

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 25 Contributor
more options

Testing in Firefox 41 on Windows, I see the expected result in the Web Console (Ctrl+Shift+k). Screen shot attached. ??