Implementing Code Standardization with VSCode, ESLint, and Prettier

# The Necessity of Code Standardization

Code standardization is a crucial aspect of software development, offering numerous benefits:

- **Improved Code Readability:** A consistent coding style makes the code easier to read and understand, thus enhancing development efficiency.
- **Reduced Errors:** Enforcing code standards helps identify and eliminate potential errors, ensuring code quality and stability.
- **Promotion of Team Collaboration:** When team members follow the same coding standards, it reduces communication barriers and improves collaboration efficiency.
- **Automated Code Review:** Code standardization tools can automatically check for code compliance, simplifying the code review process.

# Introduction to ESLint and Prettier

### The Role and Advantages of ESLint

ESLint is a popular JavaScript code checking tool used to identify and fix potential issues in the code. It checks the code against a set of configurable rules, which assist developers in adhering to best practices, enhancing code quality, and ensuring consistency.

**Advantages:**

- **Extensibility:** ESLint offers a rich set of rule sets covering various coding styles and best practices. Developers can create their own rules or use custom rules provided by the community.
- **Integration:** ESLint can be easily integrated into various development environments and tools, such as editors, IDEs, and CI/CD pipelines.
- **Automation:** ESLint can automatically perform code checks, saving developers valuable time and ensuring the code always meets expected standards.
- **Collaboration:** ESLint allows teams to share and maintain a consistent coding style, promoting collaboration and code maintainability.

### The Functionality and Features of Prettier

Prettier is a code formatting tool that automatically formats JavaScript code to comply with specific style guides. It formats code using a set of predefined rules, ensuring readability, consistency, and maintainability.

**Functionality:**

- **Automatic Formatting:** Prettier can automatically format code, including indentation, line breaks, the use of parentheses, and semicolons.
- **Consistency:** Prettier ensures that the code always conforms to predefined style guides, eliminating differences due to manual formatting.
- **Customizability:** Prettier offers customizable options that allow developers to adjust formatting rules according to their preferences.
- **Integration:** Prettier can be integrated into various editors, IDEs, and CI/CD pipelines, automatically formatting code when saving or committing.

**Features:**

- **Opinionated:** Prettier follows specific style guidelines and enforces these rules.
- **Non-Intrusive:** Prettier does not alter the semantics of the code, only its formatting.
- **Speed:** Prettier formats code at a very fast speed, even for large codebases.

# Integrating ESLint and Prettier in VSCode

### Installing ESLint and Prettier Extensions

Integrating ESLint and Prettier in VSCode requires installing the corresponding extensions. Open the VSCode extension marketplace, search for and install the following extensions:

- ESLint
- Prettier - Code formatter

Once installed, restart VSCode to load the extensions.

### Configuring ESLint and Prettier Rules

#### Configuring ESLint Rules

Open VSCode settings (`File` -> `Preferences` -> `Settings`), search for `ESLint` in the search bar, and find the `ESLint: Default` setting. Click the `Edit in settings.json` button and add the following content to the opened `settings.json` file:

{
   "eslint.validate": [
     {
       "language": ["javascript", "javascriptreact", "typescript", "typescriptreact"],
       "autoFix": true
     }
   ]
}

This configuration enables automatic validation and correction by ESLint for JavaScript, TypeScript, and React code.

#### Configuring Prettier Rules

Add the following content to the `settings.json` file:

{
   "prettier.eslintIntegration": true,
   "prettier.singleQuote": true,
   "prettier.trailingComma": "es5"
}

This configuration enables the integration of Prettier with ESLint and sets Pre