Article posted Wed Mar 01 2023

Frameworks: A Brief Introduction to Hydration

In web development, "hydration" refers to the process of adding interactivity to static HTML content after it has been loaded into the browser. This is typically achieved through the use of JavaScript, which can manipulate the HTML content and add additional functionality such as event handlers and dynamic updates.

Before hydration became a common practice, web developers had to choose between building static websites that were fast and responsive but lacked interactivity, or building dynamic websites that were slow to load and required a lot of server-side processing.

By using hydration, developers can build static websites that load quickly and then add interactivity to them as needed, resulting in a faster, more responsive user experience.

How Does Hydration Work?

Hydration works by using JavaScript to add interactivity to a static HTML page after it has been loaded into the browser. This is typically achieved by using a framework or library that provides a set of tools for working with HTML and JavaScript.

When a user requests a web page, the server sends the static HTML content along with any CSS and JavaScript files needed to style and add functionality to the page. The browser then loads the HTML content into the DOM (Document Object Model) and renders it on the screen.

Once the HTML content has been rendered, the JavaScript framework or library takes over and begins to add interactivity to the page. This can involve adding event handlers to buttons and other interactive elements, updating the page in response to user input, or fetching data from a server and displaying it on the page.

Benefits of Hydration

There are several benefits to using hydration in web development:

  • Faster Load Times: By using hydration, developers can build static websites that load quickly and then add interactivity to them as needed. This results in faster load times and a better user experience.
  • Improved SEO: Static websites are easier for search engines to crawl and index than dynamic websites, which can improve your site's SEO (Search Engine Optimization) and help it rank higher in search engine results pages.
  • Better User Experience: By adding interactivity to a static website, you can create a more engaging and responsive user experience that will keep users coming back to your site.
  • Easier Maintenance: Static websites are easier to maintain than dynamic websites, as there is less server-side processing required. This can save time and resources in the long run.

Frameworks That Feature Hydration

Several popular web development frameworks feature hydration as a key feature. Here are a few examples:

  • React

    React is a JavaScript library for building user interfaces. It uses a virtual DOM to manage changes to the HTML content and provides a set of tools for working with HTML and JavaScript. React's hydration feature allows developers to build static websites that load quickly and then add interactivity to them as needed.

  • Vue.js

    Vue.js is a JavaScript framework for building user interfaces. It uses a virtual DOM and provides a set of tools for working with HTML and JavaScript. Vue.js's hydration feature allows developers to build static websites that load quickly and then add interactivity to them as needed.

  • Svelte

    Svelte is a JavaScript framework for building user interfaces. It compiles your code into highly efficient JavaScript that updates the DOM in real-time. Svelte's hydration feature allows developers to build static websites that load quickly and then add interactivity to them as needed.

Conclusion

When it comes to web development, it's important to make sure that your website is as fast and responsive as possible. One way to achieve this is through a technique called "hydration.", using a combination of JavaScript/TypeScript and HTML to achieve quick results with fast loading times. Coupled with a strong backend providing an API, this method of development is becoming attractive for its simplicity in set-up, speed of development and overall scalability.