jQuery: add class to each item incrementally... good for fading in blocks

add-class-incrementally.js

$(function() {
    'use strict';
    // deps... jquery
    var $fade_this_in = $('.something-with-opacity-0');

    function laneAddClassDelay(jquerobj, theclass, theinterval) {
        setTimeout(function() {
            jquerobj.addClass(theclass);
        }, theinterval);
    }
    // fade in each thumb incrementally
    $fade_this_in.each(function(i) {
        laneAddClassDelay($(this), 'fadein', 200 * i);
    });
});