Partial.js
Partial.js is a library for JavaScript that allows developers to build web apps with partial/progressive rendering capabilities. It lets you define parts of the page that can be incrementally fetched and rendered to speed up page load times.
progressive-rendering
partial-rendering
performance
Partial.js: Build Web Apps with Progressive Rendering
A JavaScript library for partial/progressive rendering capabilities, letting you define parts of the page that can be incrementally fetched and rendered to speed up page load times.
What is Partial.js?
Partial.js is an open-source JavaScript library that enables web developers to implement partial/progressive rendering in their web applications. It allows parts of a web page to be incrementally fetched and rendered to improve perceived page load times.
Here are some key features of Partial.js:
- Lets you define reusable page fragments that can be independently fetched and rendered.
- Fragments can have dependencies on other fragments to control load order.
- Supports asynchronous and synchronous loading of fragments.
- Fragments are cached so they only load once.
- Lightweight library, only 2kB when gzipped.
- Integrates well with popular frameworks like React and Vue.
By leveraging Partial.js, developers can significantly improve the user experience in their web apps by showing content faster. Use cases include:
- Rendering above-the-fold content first
- Lazy-loading secondary content after initial render
- Building pages with multiple asynchronous sections
- Implementing skeleton screens and placeholders
- Code splitting and dynamic imports
Partial.js is production-ready and suitable for implementation in large-scale web applications. Combined with good coding practices, it can lead to faster interactive times and happier users.
Partial.js Features
Features
- Progressive/partial rendering
- Granular control over what to preload
- Prefetching and preloading resources
- Code splitting
- Server push
- Priority hints
Pricing
- Open Source
Pros
Faster initial page loads
Better user experience
More performant apps
Easier adoption of modern web techniques
Cons
Complexity of managing dependencies
More involved build configuration
Requires rethinking app architecture
Official Links
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