Answers for "multiple elements click event listener"

add event listener to multiple element in JS

document.querySelectorAll('.some-class').forEach(item => {
  item.addEventListener('click', event => {
    //handle click
  })
})

same click event in multiple elements in on event

$(document).on("click touchend", ".class1, .class2, .class3", function () {
     //do stuff
});