JSHint is a popular tool used by many developers to ensure their JavaScript code follows best practices and is error-free. When using JSHint, you can customize its behavior by setting various options. However, sometimes it's useful to know the default values for these options. Let's dive into the complete list of default values for JSHint options to help you better understand how your code is being analyzed.
1. Environments:
- The default environment is the browser. This means that JSHint expects your code to be executed in a browser-like environment.
- Other predefined environments include node, amd, jasmine, and mocha. Each of these has specific global variables already defined for you.
2. Globals:
- By default, JSHint does not define any global variables for you. This means that if you use any global variables in your code without declaring them, JSHint will throw an error.
3. Options:
- JSHint has a plethora of options that you can customize, but here are the defaults for some key options:
- `asi` (automatic semicolon insertion): false
- `esversion` (ECMAScript version): 5
- `browser` (browser globals): true
- `node` (Node.js globals): false
- `globals` (custom global variables): {}
- `strict` (use strict pragma enforcement): false
- `quotmark` (quotation mark type): "single"
- `maxerr` (maximum number of errors allowed): 50
4. Predefined JSHint strict rules:
- By default, JSHint enforces several strict rules. These include disallowing the use of `arguments.caller` and `arguments.callee`, as well as requiring all functions to have a name.
- These strict rules help catch potential issues in your code early on and promote better coding practices.
5. Relaxed Options:
- If you prefer a more lenient set of rules, you can customize JSHint to relax some of its restrictions. However, keep in mind that stricter rules generally lead to cleaner and more reliable code.
6. Customizing Options:
- You can easily override these default values by providing your own set of options in a `.jshintrc` file or directly in your code. This allows you to tailor JSHint's behavior to fit your specific needs and coding style.
By understanding the default values for JSHint options, you can write cleaner, more error-free JavaScript code. Remember that while JSHint is a powerful tool for catching common mistakes, it's essential to use it in conjunction with good coding practices and your own judgment. Happy coding!