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#10935 closed bug (worksforme)

Opened December 01, 2011 12:42PM UTC

Closed December 07, 2011 09:51PM UTC

Last modified December 08, 2011 07:17PM UTC

isNumeric return true on array with only one numeric value

Reported by: mengsoon Owned by:
Priority: low Milestone: None
Component: misc Version: 1.7.1
Keywords: Cc:
Blocked by: Blocking:

isNumeric return true when the test value is an array with only one numeric value.


$.isNumeric([1,2]) will return false, but

$.isNumeric([1]) will return true instead of false.

Attachments (0)
Change History (4)

Changed December 01, 2011 01:54PM UTC by sindresorhus comment:1

component: unfiledmisc
priority: undecidedlow
status: newopen

Confirmed in Chrome 15 and Firefox 8.

This is because the isNumeric method is using parseFloat which is coercing the array into a number.

Changed December 07, 2011 09:41PM UTC by gibson042 comment:2

Can we just update the isNumeric documentation to make it clear that what's being checked is the argument's String representation?

Changed December 07, 2011 09:51PM UTC by rwaldron comment:3

resolution: → worksforme
status: openclosed

What is there to change? That behaviour is correct.

Changed December 08, 2011 07:17PM UTC by sindresorhus comment:4

@rwaldron can't we at least just add this to the other examples, to make it clear?

$.isNumeric("[1]");  // true