掌握 Vue 3 Composables：一本全面的样式指南

The release of Vue 3 ushered in a transformational change, moving from the Options API to the Composition API. At the heart of this transition lies the concept of "composables" — modular functions that utilize Vue's reactive features. This change has injected greater flexibility and code reusability into the framework. However, it has also birthed challenges, notably the inconsistent implementation of composables across projects, which often results in convoluted and hard-to-maintain codebases.

Vue 3的发布带来了一次变革性的改变，从Options API转向了Composition API。这个转变的核心是“可组合”这个概念 - 利用Vue的响应式特性的模块化函数。这个改变为框架注入了更大的灵活性和代码可重用性。然而，它也带来了挑战，特别是在项目中不一致的可组合实现，往往导致复杂和难以维护的代码库。

This style guide aims to harmonize coding practices around composables, with a focus on producing clean, maintainable, and testable code. Though composables may appear to be a new beast, they are fundamentally just functions. Hence, this guide grounds its recommendations in time-tested principles of good software design.

此样式指南旨在统一组合编码实践，重点是生成干净、可维护和可测试的代码。虽然组合可能看起来像是一种新的东西，但它们本质上只是函数。因此，该指南将其建议基于经过时间验证的良好软件设计原则。

Whether you're just stepping into Vue 3 or are an experienced developer aiming to standardize your team's coding style, this guide serves as a comprehensive resource.

无论您是刚开始使用Vue 3还是经验丰富的开发人员，旨在标准化团队的编码风格，本指南都是一个全面的资源。

File Naming

文件命名

Rule 1.1: Prefix with `use` and Follow PascalCase

规则 1.1：以`use`为前缀，遵循 PascalCase 命名规范

// Good
useCounter.ts
useApiRequest.ts // Bad
counter.ts
APIrequest.ts

Composable Naming

可组合函数命名

Rule 2.1: Use Descriptive Names

规则 2.1：使用描述性名称

// Good
export function useUserData() {} // Bad
export function useData() {}

Folder Structure

文件夹结构

Rule 3.1: Place in composables Directory

规则3.1：放置在可组合目录中

src/
└── composables/
    ├── useCounter.ts
    └── useUserData.ts

Argument Passing

参数传递

Rule 4.1: Use Object Arguments for Four or More Parameters

规则 4.1：对于四个或更多参数，请使用对象参数

// Good: For Multiple Parameters
useUserData({ id: 1, fetchOnMount: true, token: 'abc', locale: 'en' }); // Also Good: For Fewer Parameters
useCounter(1, true, 'sessi...

掌握 Vue 3 Composables：一本全面的样式指南