关于代码中../../hoc/Aux等简写目录路径的技术咨询

Hey there! Relative paths can definitely feel confusing at first, so let’s break down your questions clearly with real-world examples.

1. What does ../../hoc/Aux mean in BurgerBuilder.js? #

First, let’s assume a typical React project structure (since BurgerBuilder is a common component from popular React courses):

src/
├── containers/
│   └── BurgerBuilder/
│       └── BurgerBuilder.js  // Your file here
├── hoc/
│   └── Aux.js                // The file you're importing
└── components/
    └── ...

• ../ is standard syntax for "move up one directory level".
• So ../../hoc/Aux translates to:
  1. Start in the BurgerBuilder/ folder (where your BurgerBuilder.js lives)
  2. First ../ takes you up to the containers/ folder
  3. Second ../ takes you up to the src/ folder
  4. Finally, /hoc/Aux moves into the hoc folder and targets the Aux file

You mentioned "exiting the src folder"—that’s not the case here. We stop at src/ before entering the hoc directory. Also, .../../hoc/Aux is invalid syntax—there’s no such thing as ... in relative paths. Only ../ (up one level) and ./ (current directory) are recognized standard syntax.

2. What does ..**/../**hoc/Aux mean? #

The ** is a glob pattern (wildcard) used in tools like Webpack or file system utilities, but it’s not part of standard JavaScript relative path syntax.

In glob terms, ** matches any number of subdirectories. However, ..**/../**hoc/Aux is not a valid or practical path for imports. If you’re trying to skip intermediate folders to reach hoc/Aux, this isn’t the right approach.

Instead, if you want cleaner imports, you can configure your bundler (like Webpack) to treat src/ as a root directory. Then you can write import Aux from 'hoc/Aux' directly, no relative paths needed. For standard relative paths though, ../../hoc/Aux is the correct choice for the structure we outlined.

Recommended Learning Resources #

• Node.js Path Module Docs: This covers core JavaScript path handling, including the difference between relative/absolute paths and how ../ works under the hood.
• Webpack Module Resolution Guide: If you’re using Webpack (common in React projects), this explains how to set up path aliases to simplify imports and avoid messy relative paths.
• ES Modules Import Tutorials: Look for guides on ES module syntax, which break down the rules for specifying paths when importing files.

内容的提问来源于stack exchange，提问作者ARTLoe