javascript - Simplify functions so the code does not get too big -


i have code each element make scroll effect when done: keep repeating function each element, problem 30 elements different classes add, code large.

jquery:

  $(window).scroll(function () {         $('.regalos').each(function () {             var imagepos = $(this).offset().top;              var topofwindow = $(window).scrolltop();             if (imagepos < topofwindow + 400) {                 $(this).addclass("stretchleft");             }         });          $('.sprite-layer-2').each(function () {             var imagepos = $(this).offset().top;              var topofwindow = $(window).scrolltop();             if (imagepos < topofwindow + 400) {                 $(this).addclass("slideleft");             }         });        // ... must 28     });

i use:

$(window).scroll(function () {     var topofwindow = $(window).scrolltop();      function _checkoffset(classname) {         return function () {             var $this = $(this),                 imagepos = $this.offset().top;              $this.toggleclass(classname, (imagepos < topofwindow + 400));         };     }      $('.regalos').each(_checkoffset('stretchleft'));     $('.sprite-layer-2').each(_checkoffset('slideleft')); });

however, might better off re-thinking structure avoid adding different class names based on offset.


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