23120 2013-09-01 02:08:11 +0000 input[type=number] need to provide a way in which the user can validate the user's entered value (e.g. for validation and feedback) -- the current value sanitization algorithm prevents any interaction [...] 2013-10-21 21:03:18 +0000 1 1 1 Unclassified WHATWG HTML unspecified Other other RESOLVED WONTFIX http://www.whatwg.org/specs/web-apps/current-work/#number-state-(type=number) P3 normal Unsorted 1 contributor ian alphagma ian mike contributor oldest_to_newest 92790 0 contributor 2013-09-01 02:08:11 +0000 Specification: http://www.whatwg.org/specs/web-apps/current-work/multipage/states-of-the-type-attribute.html Multipage: http://www.whatwg.org/C#number-state-(type=number) Complete: http://www.whatwg.org/c#number-state-(type=number) Referrer: http://stackoverflow.com/questions/16485014/validate-number-type-inputs-with-jquery?rq=1 Comment: input[type=number] need to provide a way in which the user can validate the user's entered value (e.g. for validation and feedback) -- the current value sanitization algorithm prevents any interaction with it if the entered value is anything but a valid floating point number. Furthermore, it is impossible to distinguish between invalid-format values and empty-string values. Posted from: 99.47.180.118 User agent: Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/30.0.1599.22 Safari/537.36 92895 1 ian 2013-09-03 17:40:42 +0000 Is element.validity.badInput insufficient? The point of type=number is that the browser is the one that's supposed to validate the user's input. 92905 2 alphagma 2013-09-03 19:19:56 +0000 Hi Ian, thanks for your reply. My bad, at the moment of reporting the issue I was not aware of validity.badInput. I believe this request can be closed then. Still, as a suggestion, I would like to say that a value of empty string is misleading, while the string representation of NaN would be more indicative of the current state of the input. 94529 3 ian 2013-10-10 00:21:02 +0000 The idea is to never expose an invalid value, because doing so would mean that code would need to be ready to handle it. The current design means that you don't have to worry about bad input unless you want to. 95042 4 ian 2013-10-21 21:03:18 +0000 closing per comment 2. Feel free to file new bugs on related issues. Thanks!