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Svelte vs jQuery: What are the differences?


In this article, we will discuss the key differences between Svelte and jQuery.

  1. Performance: One of the major differences between Svelte and jQuery is their approach to performance. Svelte is a compile-time framework, which means that it converts the code into highly efficient JavaScript during the build process. This helps in reducing the size of the final JavaScript bundle and improving the overall performance of the application. On the other hand, jQuery operates at runtime and relies on traversing the DOM to manipulate elements, which can have a performance impact, especially in large applications.

  2. Size: Another important difference is the size of the libraries. Svelte is a lightweight framework, with its core library being only a few kilobytes in size. This makes it ideal for building small, fast applications. On the other hand, jQuery is a larger library, with its minified version being around 84 kilobytes. This can have an impact on the loading time of the website, especially on slower network connections.

  3. Reactivity: Svelte has built-in reactivity, which means that any changes made to the data are automatically reflected in the DOM. This allows developers to write code that is more declarative and easier to reason about. In contrast, jQuery does not have built-in reactivity and developers need to manually update the DOM when the data changes. This can lead to more verbose and error-prone code.

  4. Component-based architecture: Svelte promotes a component-based architecture, where UI elements are encapsulated within reusable components. This encourages modular code and makes it easier to manage and maintain complex applications. On the other hand, jQuery does not have a built-in component system and developers need to manually manage the state and behavior of UI elements.

  5. Browser support: Svelte supports modern browsers and does not require any additional polyfills or libraries. It takes advantage of new JavaScript features, such as reactive programming and template literals. On the other hand, jQuery has good backward compatibility and supports older browsers, making it a suitable choice for projects that need to target a wide range of browsers.

  6. Learning curve: Svelte has a steeper learning curve compared to jQuery. Svelte introduces new concepts and syntax, such as reactive statements and stores, which may require some time for developers to become familiar with. On the other hand, jQuery has a simpler syntax and a large community that provides extensive documentation and resources, making it easier for beginners to get started.

In summary, Svelte and jQuery differ in terms of performance, size, reactivity, component-based architecture, browser support, and learning curve. Svelte focuses on high performance and efficient code generation, while jQuery offers backward compatibility and a simpler syntax.

Decisions about jQuery and Svelte
Peter Schmalfeldt
Senior Software Engineer · | 9 upvotes · 62.3K views

I have made an extended effort to drop frameworks completely if they are not actually needed. While I still use JS Frameworks like Vue, Angular and React ( if I have too ), I see far too often devs / teams deciding to build a single page site entirely in a framework, rather than just using HTML, CSS and a little JS.

I personally feel it's important to know when a framework is a good solution, and maybe when it's overkill.

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Máté Homolya
Senior developer at Self-employed · | 11 upvotes · 275.7K views

Svelte is everything a developer could ever want for flexible, scalable frontend development. I feel like React has reached a maturity level where there needs to be new syntactic sugar added (I'm looking at you, hooks!). I love how Svelte sets out to rebuild a new language to write interfaces in from the ground up.

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Alex Guesnon
Full-stack software engineer · | 3 upvotes · 112.4K views

Svelte 3 is exacly what I'm looking for that Vue is not made for.

It has a iterable dom just like angular but very low overhead.

This is going to be used with the application.

for old/ lite devices . ie. * android tv, * micro linux, * possibly text based web browser for ascci and/or linux framebuffer * android go devices * android One devices

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Malek Boubakri
Web developer at Quicktext · | 0 upvote · 206.2K views

The project is a web gadget previously made using vanilla script and JQuery, It is a part of the "Quicktext" platform and offers an in-app live & customizable messaging widget. We made that remake with React eco-system and Typescript and we're so far happy with results. We gained tons of TS features, React scaling & re-usabilities capabilities and much more!

What do you think?

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kazi shahin
CTO at Blubird Interactive Ltd. · | 3 upvotes · 100.3K views

I've an eCommerce platform building using Laravel, MySQL and jQuery. It's working good and if anyone become interested, I just deploy the entire source cod e in environment / Hosting. This is not a good model of course. Because everyone ask for small or large amount of change and I had to do this. Imagine when there will be 100 separate deploy and I had to manage 100 separate source. So How do I make my system architecture so that I'll have a core / base source code. To make any any change / update on specific deployment, it will be theme / plugin / extension based . Also if I introduce an API layer then I could handle the Web, Mobile App and POS as well ? Is the API should be part of source code or a individual single API and all the deployment will use that API ?

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Manatsawin Hanmongkolchai

When I started TipMe, I thought about using React frontend. At the end, plain, simple jQuery won.

I had to build this iteration of the site fast and by using jQuery I could keep using Django as a full stack development tool. One important point is Django form (combined with Django Bootstrap3) means that I don't have to reinvent form rendering again, which will be the case with React.

Over time, more interactivity seeped into the site and React components start making its way into the codebase.

I now wish the site is built using React so that I could add more user friendly interfaces easier (no more fuddling with server states) but I would still say jQuery helped me get past those early days.

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Pros of jQuery
Pros of Svelte
  • 1.3K
  • 957
    Dom manipulation
  • 809
  • 660
    Open source
  • 610
  • 459
  • 395
  • 350
  • 281
  • 227
    Light weight
  • 93
  • 84
    Great community
  • 79
    CSS3 Compliant
  • 69
    Mobile friendly
  • 67
  • 43
  • 42
    Swiss Army knife for webdev
  • 35
    Huge Community
  • 11
    Easy to learn
  • 4
    Clean code
  • 3
    Because of Ajax request :)
  • 2
  • 2
  • 2
    Just awesome
  • 2
    Used everywhere
  • 1
    Improves productivity
  • 1
  • 1
    Easy Setup
  • 1
    Open Source, Simple, Easy Setup
  • 1
    It Just Works
  • 1
    Industry acceptance
  • 1
    Allows great manipulation of HTML and CSS
  • 1
    Widely Used
  • 1
    I love jQuery
  • 55
  • 38
  • 34
    Javascript compiler (do that browsers don't have to)
  • 34
  • 33
  • 30
  • 28
    Near to no learning curve
  • 26
    Fast as vanilajs
  • 26
    Real Reactivity
  • 22
    All in one
  • 18
    Use existing js libraries
  • 18
    Compiler based
  • 16
  • 16
    Very easy for beginners
  • 16
  • 13
  • 12
    Ease of use
  • 12
    No runtime overhead
  • 10
    Built in store
  • 9
  • 7
    Start with pure html + css
  • 7
    Best Developer Experience
  • 6
  • 4

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Cons of jQuery
Cons of Svelte
  • 6
    Large size
  • 5
    Sometimes inconsistent API
  • 5
    Encourages DOM as primary data source
  • 2
    Live events is overly complex feature
  • 3
    Event Listener Overload
  • 2
    Little to no libraries
  • 2
  • 2
    Learning Curve
  • 2
    Hard to learn

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What is jQuery?

jQuery is a cross-platform JavaScript library designed to simplify the client-side scripting of HTML.

What is Svelte?

If you've ever built a JavaScript application, the chances are you've encountered – or at least heard of – frameworks like React, Angular, Vue and Ractive. Like Svelte, these tools all share a goal of making it easy to build slick interactive user interfaces. Rather than interpreting your application code at run time, your app is converted into ideal JavaScript at build time. That means you don't pay the performance cost of the framework's abstractions, or incur a penalty when your app first loads.

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What companies use jQuery?
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