We successfully addressed all already mentioned pitfalls. Write on Medium, // Create wish and it to the wishes collection, WishQuickSubmitterView.prototype.initEvents = function() {, $('.wish-quick-submitter .wish-add').on('click', function() {, Long-term React & Redux SPA — Lessons learned, Integrating DropzoneJS with a JavaScript Image Cropper to Optimise Image Uploads, 10 Reasons Why Python Beats PHP for Web Development. As a result, there’s lots of repetitive code in desperate need of refactoring, and huge reams of horrible jQuery spaghetti code. Another problem that can happen in jQuery when you start working on larger apps is that you’ll likely create “Spaghetti Code” (AKA code that becomes very difficult or impossible to manage). Our last advice concerns code quality more than pure performance. index.html — quick wish submitter header layout is added. Y’all touched on it, but jquery gets blamed for spaghetti code. It’s the beginning of the project. Angular addressed backbone boilerplate. As a front-end architect and freelancer, I often do performance audits for websites. Language. WishesCollection would act as subscriber and on a new wish addition, the collection would store it itself. Is it worth, for a Django developer to switch to Laravel? Thanks to Publish / Subscribe pattern we can improve SRP and make WishQuickSubmitterView loosely coupled to any other views. Due to its relative ease of use, incorrect usage of jQuery’s selector chain, use of non-descriptive variable names and trying to write complex functions, jQuery can lead to writing code that would eventually be unmaintainable. It’s almost the same as Separation of concern implementation, so here are only the differences. Something as simple as targeting a parent element or injecting a CSS rule takes three to six lines of code. Refactoring jQuery spaghetti code to use DDD [closed] Ask Question Asked 7 years, 4 months ago. Active 7 years, 4 months ago. Separating the functionality by context will help us achieve modularity and split the spaghetti-like app.js into smaller objects. First jQuery, then backbone, then Angular, then ClojureScript with React, now React and Apollo. I was wrong, of course. Some people use jQuery just for selecting elements in the DOM or doing Ajax but nothing more what jQuery has to over. Perhaps the best thing about jQuery is that you don’t need to be a programming genius to wow clients. Use promises. Concerning our app architecture, the presentation objects (WishesView, WishQuickSubmitterView) can act as both publishers and subscribers, because on a DOM Event ($('.wish-list .wish-add').on('click', function() {})) they will publish a message saying “hey, a new wish is being added”, and also they have to respond respectively (to be subscribed to new wishes addition) - i.e. wish-collection.js — it’s subscribed and listen for new wishes addition. Not only does it making working in the code unnecessarily complicated and a drag on your developers, it can make it almost impossible to update. This is a simple example of applying an animation delay to each child of a basic horizontal dropdown navigation menu. Here's an example of jQuery spaghetti (maybe not a full plate ): Observers are also called Subscribers and we refer to the object being observed as the Publisher (or the subject). Here are the app’s features: As simple as possible, so let’s continue with the first version of our app — the spaghetti one. app.js — the entire app’s functionality is coded here. However, starting with a solid architecture will give us the flexability to improve the codebase’s weaknesses once needed. Me and my 2,000 lines of jQuery spaghetti code were just fine, thank you very much. We depend on $('.wish-list .wish-list-sum').text() in order to calculate the sum. 328 S. Jefferson St.Suite 670Chicago, IL 60661312.450.6320, Education TechnologyHealthcareManufacturing & IoTRetail & EcommerceMission-DrivenMedia Companies. Scripts that slow down page load, unresponsive user interfaces, and spaghetti code knotted so deep that it should come with a bottle of whiskey for the next sucker developer that has to work on it. 1. Auto-run code Only auto-run code that validates Auto-save code (bumps the version) Auto-close HTML tags Auto-close brackets ... jQuery Mobile 1.2.0 jQuery Mobile 1.3.0b1 jQuery UI 1.9.2 Framework