Weird dragging behaviour if value for slidesPerGroup is a string

[warudin]

Clear and concise description of the problem

If the value for slidesPerGroup for whatever reason is a string instead of an integer, the slider becomes somewhat unusable.

See the following example: https://codesandbox.io/p/sandbox/swiper-pagination-forked-hv54q2?file=/index.html:78,27

If you try to drag beyond the second "group" (slides 3-4), the slider will return to the second group. Using the bullets to go to the third group will also produce weird behaviour, when trying to drag further.

Interestingly, the same behaviour is not happening when the value for slidesPerView is a string. So slidesPerView is a bit more robust already?

Suggested solution

Apply the same king of sanitising on slidesPerGroup as is applied on slidesPerView

Alternative

No response

Additional context

No response

Validations

• Follow our Code of Conduct
• Read the docs.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.

Would you like to open a PR for this feature?

• I'm willing to open a PR

[nolimits4web]

Docs clearly says It must be a number https://swiperjs.com/swiper-api#param-slidesPerGroup

[warudin]

Fair enough, why not make Swiper more robust though? 🤷‍♂️