Loading Icon PNG: A Comprehensive Guide

When it comes to loading icons on a website, there are several options available. One of the most popular is using PNG files as part of a build assets graph. In this article, we'll explore how referenced assets can be included in the build process and optimized for better performance.

Understanding Hashed File Names

When assets are included as part of the build assets graph, they receive hashed file names. This allows for efficient processing by plugins and optimization tools. For example, if an asset is smaller than the assetsInlineLimit option, it will be inlined as a base64 data URL.

Extending the Internal List

The assetsInclude option can be used to extend the internal list of included assets. This allows developers to include additional files or resources that are not automatically detected by the build process.

Automatic Conversion with Vue Plugin

When using the Vue plugin, asset references in Vue SFC templates are automatically converted into imports. This makes it easier to manage and optimize assets within a Vue-based application.

Common Filetypes Detected Automatically

Common image, media, and font filetypes are detected as assets automatically by the build process. This includes URL references in CSS files, which are handled similarly to other asset types.

Absolute vs Relative Paths

The import statement can use either absolute public paths or relative paths based on the project root during development. This behavior is similar to webpack's file-loader, allowing for flexibility and control over the asset loading process.

Example Usage

For example, if we have an HTML element with an ID of 'hero-img' and want to set its src attribute to a URL referencing an image, we can use the following code:

```javascript

getElementById('hero-img').src = imgUrl;

```

In this case, `imgUrl` will be `/img.png` during development and become `/assets/` in the production build.

In conclusion, loading icon PNG files as part of a build assets graph provides several benefits for web developers. By understanding how referenced assets are included and optimized, developers can improve the performance and efficiency of their applications. Whether using Vue or other frameworks, this article has provided a comprehensive guide to loading icons and managing assets in web development.

Loading icon png