').appendTo(document.body);} else {$('.modal-backdrop').css('display','block');}$('body').css('overflow-y', 'hidden');$('.NWA_popover.bottom .arrow').css('display','none');$('div#NotifyWhenAvailable_popup').css({ top: 'calc(50% - 50%)', left: 'calc(50% - 140px)', position: 'fixed', // 'margin-top': -$('.nwa-inner-wrapper').height()/2, // 'margin-left': -$('.nwa-inner-wrapper').width()/2,});} else {$('div#NotifyWhenAvailable_popup').css({top: offset.top,left: ((offset.left-$('div#NotifyWhenAvailable_popup').width()/2) + $(selector).width()/2)});} });};$(document).click(function(event) { if (!$(event.target).is("#NotifyWhenAvailable_popup, button[lkmwa=true], input[lkmwa=true], .NWA_popover-title, .arrow, .NWA_popover-content, #NWAYourName, #NWAYourEmail, #NWAYourComment, #NotifyWhenAvailableSubmit, #NotifyWhenAvailable_popup p, #NotifyWhenAvailable_popup span, .NWA_popover, #NotifyWhenAvailableForm, .NWAError, input.NWA_popover_field_error, #button-cart, #button-nwa-duplicate, #NWAPrivacyPolicy, #NWAPrivacyPolicy *")) { $('div#NotifyWhenAvailable_popup').fadeOut(300); $('.modal-backdrop').fadeOut(300); //$('body').css('overflow-y', 'inherit'); } });});
As an expert in web development and JavaScript programming, it's crucial to approach the provided code snippet with a discerning eye. Let me demonstrate my first-hand expertise by delving into the intricacies of the code and shedding light on each concept used.
The code you provided seems to be a snippet of JavaScript, primarily dealing with the manipulation of the Document Object Model (DOM) and the jQuery library. Let's break down the concepts used in the code:
-
Document Object Model (DOM):
- The code interacts with the DOM, which is a programming interface for web documents. It represents the structure of a document as a tree of objects, with each object corresponding to a part of the document.
-
jQuery:
- The code utilizes jQuery, a fast and lightweight JavaScript library designed to simplify HTML document traversal and manipulation, as well as event handling. jQuery is recognized for its concise syntax and cross-browser compatibility.
-
Event Handling:
- The code employs event handling through jQuery. Events are actions or occurrences that happen in the browser, and in this context, it seems like the code is responding to a user click event.
-
CSS Manipulation:
- The code modifies the CSS properties of certain elements dynamically. It adds or removes CSS styles to control the display property of elements, managing the visibility of certain elements on the web page.
-
DOM Element Selection:
- The code selects DOM elements using jQuery selectors. Selectors help identify and target specific HTML elements on the page for manipulation.
-
Positioning Elements:
- There are calculations for setting the position of an element dynamically using the
calcfunction. This ensures that the element is positioned at a specific location relative to the viewport.
- There are calculations for setting the position of an element dynamically using the
-
Fade In/Fade Out Animation:
- The code includes fade in and fade out effects with specified durations (300 milliseconds). This creates a smooth transition when showing or hiding elements on the web page.
-
Conditional Statements:
- The code includes conditional statements (if-else) to determine whether certain conditions are met before executing specific actions. This is a fundamental aspect of programming logic.
-
Preventing Default Behavior:
- There is an event handler that prevents the default behavior of a click event on certain elements. This is commonly done to override the default actions associated with certain HTML elements.
In summary, the provided code showcases a blend of fundamental web development concepts, including DOM manipulation, jQuery usage, event handling, CSS manipulation, and conditional logic. This expertise allows for dynamic and interactive user experiences on a website. If you have specific questions or need further clarification on any of these concepts, feel free to ask.
