I have HTML page which have multiple check boxes and individually they can be checked. I have button select, so what I am suppose to do is. When I click on sel
inside the "click" function "this" is button and not a checkbox. and button property checked is underfined. "$('.btn-chk').each" - is loop on each element with class ".btn-chk", in your HTML is buttons and not an checkboxes.
in your context the "#selectAll" must be a checkbox and put class '.btn-chk' on your checkboxes