bind event only once

Question

I have the following code:

function someMethod()
{
  $(obj).click(function {});
}

someMethod is called twice and thus click event is binded

Answer 1

You can add css class to the binded elements and then filter them out:

function someMethod()
{
    $(obj).not('.click-binded')
          .click(function {})
          .addClass('click-binded');
}

This method may be used also for plugins:

  $(obj).not('.datetimepicker-applied')
        .datetimepicker()
        .addClass('datetimepicker-applied');