Bug in Number Input

[jthiyagarajan]

Consider the below html input type "number"

Since, its a number type it will allow you to type number only, but if you type any alpha,special character it will not allow you enter.

But i found that letter "e" is allowed in the type .

Please clarify.

[LJWatson]

Thanks @jthiyagarajan

The definition of <input type="number"> explains that only valid floating-point numbers should be accepted.

That said, it seems that browsers do not always honour this requirement though.

It seems that browsers may not consistently recognise this requirement though. With thanks to @IanPouncey for tests, it seems that Safari and Firefox accept any non-numeric character, whilst Chrome accepts "e" but no other non-numeric character.

I think this issue seems to be with the browsers, not the HTML specification, though perhaps the definition could be improved?

[IanPouncey]

To be clear, Chrome accepts 'e' (or 'E') as exponent shorthand (i.e. 3e5 for 3×10^5), not as a constant. It validates the former if it is in range, but not the latter as a number.

[chaals]

@IanPouncey did your tests show that browsers other than chrome accept the 3.0e8 notation as valid for number?

[chaals]

This is covered by #1355 - closing as a duplicate