Empty maxlength fails validation

[locomo]

Subject of the issue

Error thrown on text inputs when maxlength attribute has no value:
"Please enter no more than 0 characters."

Your environment

• 1.16.0
• Safari 10.1.2, Chrom 58

Steps to reproduce

https://jsfiddle.net/t80x2L2a/

Input fields with maxlength attribute but no value fail validation

Expected behaviour

If maxlength attribute has no value then it should not (and cannot) be compared to the length of the field

Actual behaviour

length is compared to param (length <= param) but this will always return false if param is empty

[Arkni]

Thanks a lot for filling this issue! I'll triage and take a look at it as soon as possible!

[locomo]

bump

[Arkni]

Hi there,

I don't really have the time for working on this issue. Would you or anyone like to write a patch for this? I'd be more than happy to walk you through the steps involved.

Thanks!

[sunny-shu]

Hi there,

I don't really have the time for working on this issue. Would you or anyone like to write a patch for this? I'd be more than happy to walk you through the steps involved.

Thanks!

@Arkni
Is this problem solved?if no,i'm happy to figure it out.

[staabm]

I guess its still valid. Feel free to PR a unit test and a fix

[sunny-shu]

I have found the problem and fixed it, but I am not very familiar with the jquery testing framework, I need a little time to add test case， then i will submit a PR.