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This article focuses on "what are the new features of Vue 2.5", friends who are interested may wish to take a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn what are the new features of Vue 2.5.

Better TypeScript integration

Thanks to the help of the TypeScript team, 2.5 provides greatly improved type declarations that can be used with Vue's out-of-the-box API without the need for a component class decorator. The new type declaration also makes editor extensions such as Vetur more powerful, providing better Intellisense support for pure JavaScript users. For more details, please check out our previous information about the changes (translated version).

Thanks to Daniel Rosenwasser from the TypeScript team for initiating PR, as well as core team members Herrington Darkholme and Katashin for their improvement and review.

Note: TypeScript users should also update the following packages to the * version to be compatible with type declarations: vue-router,vuex,vuex-router-sync and vue-class-component.

Better error handling

In version 2. 4 and earlier, we typically used global config.errorHandleroption to handle unexpected errors in applications. We also have the renderError component option to handle errors in the rendering function. However, we lack the mechanism to handle generic errors within specific parts of the application.

In 2. 5, we introduced a new errorCaptured hook. A component with this hook catches all errors in its subcomponent tree (excluding itself) (excluding those invoked in an asynchronous callback). If you are familiar with React, this is similar to the concept of error boundaries introduced in React 16. The hook receives the same parameters as the global errorHandler, and you can use this hook to handle and display errors gracefully.

Better support functional components in SFC

Using vue-loader > = 13.3.0 and Vue 2.5, functional components defined as individual file components in the * .vue file can now get the correct template compilation, Scoped CSS, and hot reload support. This makes it easier to convert leaf components into functions for performance optimization.

* thanks to Blake Newman, a member of the core team, for his contribution to these features.

Environment-independent server rendering

The default build of vue-server-renderer assumes a Node.js environment, which makes it unavailable in some JavaScript runtimes, such as php-v8js or Nashorn. In 2.5, we have released an environment-independent version of vue-server-renderer that can be used in browsers or pure JavaScript engines. This opens up interesting strategies, such as using Vue server rendering directly in the PHP process.

At this point, I believe you have a deeper understanding of "what are the new features of Vue 2.5". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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