3 examples of 'jquery isshow' in JavaScript

369
function is_element_visible(jq_element) {
370
    // Returns true if jq_element is currently on the visible part of
371
    // the html page.
372
373
    // element must not be hidden
374
    if (!jq_element.is(":visible")) return false;
375
    // element is invisible if its bottom is above the top of the window
376
    if ((jq_element.offset().top + jq_element.height()) < $(window).scrollTop()) return false;
377
    // or its top below the bottom of the window
378
    if (jq_element.offset().top > ($(window).scrollTop() + $(window).height())) return false;
379
    return true;
380
}

157
function jQuerySetter(realJQuery) {
158
    jQuery = function (selector, context) {
159
        var obj = realJQuery(selector, context);
160
161
        jQuerySelectors.forEach(function (item) {
162
            if (selector === item.key) {
163
                debug && console.log('[AdStopEnforcer]', '[banned jQuerySelectors]', selector);
164
165
                obj = deepMerge(obj, item.value);
166
            }
167
        });
168
169
        return obj;
170
    };
171
172
    Object.keys(realJQuery).forEach(function (key) {
173
        jQuery[key] = realJQuery[key];
174
    });
175
}

589
function hasJQueryData(object) {
590
  var data = evalJQueryData(object);
591
  for (var x in data) {
592
    if (data.hasOwnProperty(x)) {
593
      return data;
594
    }
595
  }
596
};