Originally Posted by tony_sologubov
Thanks for reaching out.
Could you please explain the problem in more detail?
If we talk about quick view product page, I would assume that clicking +/- would just change value in quantity box and would not call jQuery('.update-quantity').submit(); function.
The same happens when you change quantity manually there.
I'm not using the implementation from controller.js . I just put my custom .js directly in my quntity_box.twig. But that .js code affect the quick view page. If I click to change product attribute in quick view then my custom js. is executed more time, and the value of element increment with more than one unit.