What are the reasons for the white screen on the first screen of the Vue project?

The reasons for the white screen on the first screen of the Vue project

When developing a Vue project, we often encounter the problem of a white screen on the first screen. In this case, you will only see a blank screen for a while after opening the page, and the content will not be displayed until the page is completely loaded. This problem has been plaguing many developers. So, what exactly causes the white screen on the first screen of the Vue project? This article will analyze from the following aspects.

1. The packaged file is too large

In the Vue project, Webpack will generate a bundle.js file after packaging, which contains the Javascript code of all projects. If the package file is too large, the loading process of the first screen will be slow. The solution to this problem is to reduce the size of the above-the-fold loading file through sub-packaging and lazy loading.

Subpackaging refers to packaging some independent modules separately, which can make the first screen load faster. Lazy loading means to wait until the user needs to use certain modules before loading them, which can reduce the load on the first screen. Through these two methods, you can effectively solve the problem of a white screen on the first screen caused by too large package files.

2. Slow network loading speed

When the network speed is slow, the loading process of the first screen will appear relatively slow. The way to solve this problem is to optimize network requests. On the one hand, you can use CDN to accelerate network requests and make resources load faster; on the other hand, you can also use server-side rendering to shorten the loading time of the first screen.

3. Lack of Loading Effect

When the page loads slowly, the user needs to wait for a longer time, and it is usually difficult to wait patiently for the page to load. Therefore, in order to allow users to better experience the page loading process, we can provide a Loading effect to tell the user that the current page is loading.

By introducing the Loading component, a Loading animation can be displayed during the page loading process to let the user know that the page is still working. When the page is loaded, the Loading animation will disappear and the actual content of the page will be displayed.

4. Lack of data judgment

In the Vue project, it takes a certain amount of time to render data onto the page. If there is no effective data judgment during the process of obtaining data, It is easy to have a white screen on the first screen.

The way to solve this problem is to add some data judgment logic before starting the data request, such as judging whether the obtained data is empty, whether the format is correct, etc. This can avoid empty data rendering, thereby reducing the first screen loading time.

Conclusion

In the Vue project, the first screen white screen problem is inevitable, but we can alleviate this problem through reasonable optimization methods. It should be noted that during the optimization process, we should make choices based on actual conditions, and we also need to continuously monitor and improve website performance. Only in this way can we create a more perfect Vue project.

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