In our evaluation, Svelte demonstrated a higher retention ratio than Vue 3, based on data from the State of JS survey over the past five years. Svelte secured the 2nd position, indicating a greater willingness among developers to use it again, whereas Vue 3 occupied the 4th position.
Svelte outshone Vue 3 in terms of typing. It offered a superior typing experience with easier component design processes and built-in typed events, contributing to a more user-friendly development environment.
Svelte’s ability to import enums from other files and use them in templates sets it apart from Vue 3, providing a more flexible and convenient development approach.
The Svelte syntax was deemed more elegant and user-friendly compared to Vue. A side-by-side comparison of code blocks illustrated the concise and clear syntax of Svelte, showcasing its simplicity and readability.
Svelte allows direct HTML writing without the need for extra div elements in the template, promoting a cleaner and more straightforward structure. Additionally, Svelte automatically scopes styles, enhancing maintainability and avoiding CSS side effects.
In Svelte, the update of data does not require computed properties, providing a more straightforward coding experience. The focus remains on writing arrow functions, simplifying the code structure.
The reduction in layers between the browser and the app in Svelte results in optimized and faster task completion compared to Vue, which relies on a virtual DOM.
Svelte’s use of declared variables enables automatic updates, eliminating the need to wait for changes to be reflected in the virtual structure and providing a superior user experience.
While Svelte presented compelling advantages, it is essential to acknowledge its cons, including a relatively small community, given its emergence in 2019. However, the community and support may grow over time as developers recognize its merits.
The migration from Vue to Svelte was initiated in August during a period of lower app usage, ensuring minimal disruption.
The migration spanned two weeks, with two front-end developers working full-time for two weeks, accompanied by another developer working full-time for one week, involving a total of three developers.
The migration process involved using the Notion tool to assign tickets to developers, creating new components in Storybook, and distributing pages among developers for rewriting in Svelte.
As a startup with a manageable number of files, the migration process was expedited. However, the decision to migrate to SvelteKit during its active development phase posed challenges, necessitating significant adjustments a month after the transition. The SvelteKit team provided a command and detailed migration guide, facilitating adaptation to the new update.
SvelteKit’s “folder-based routing” brought organizational benefits, allowing the splitting of pages into sub-pages and facilitating the reuse of standard variable names. Layouts integrated into associated routes enhanced organizational clarity within the project tree.
In addition to the benefits highlighted earlier, the migration to Svelte yielded several key advantages:
Compiled Svelte applications demonstrated lightweight characteristics, resulting in faster loading speeds compared to frameworks with embedded runtimes.
The absence of a virtual DOM in Svelte eliminated a layer, accelerating code execution and contributing to faster page changes.
Svelte’s compilation of logic, structure, and style into a single .svelte file facilitated the creation of readable, maintainable, and component-oriented code.
The migration to Svelte resolved initial type checking issues, eliminating recurrent notifications and Sentry errors, thereby enhancing code stability.
In conclusion, the migration from Vue 2 to Svelte proved to be a strategic decision, driven by the advantages Svelte offered in terms of syntax, typing, and overall development experience. Despite the challenges associated with migrating to an actively developed framework, the benefits of improved performance, better developer experience, and concise code outweighed the initial hurdles. As SvelteKit stabilizes and gains community support, it stands as a robust choice for front-end development.
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