`EmptyArray` type

描述

const defaultArr = [];
const Component = ({arr = defaultArr}) => arr.join(",");

贡献者指南

技术栈

typescript

领域

frontenddeveloper experience

议题类型

feature

难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。

2

预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。

1-3 hours

活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。

fresh

清晰度议题是否清楚说明期望改动、验收标准和下一步。

clear

前置要求

Basic TypeScriptFamiliarity with type fest library structure

新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。

75

研究方向

The EmptyArray type should be defined in a new file source/empty array.d.ts, following the same pattern as source/empty object.d.ts. It should use a generic parameter T and extend an empty tuple type. The type should be exported in the main index.d.ts. Ensure tests are added under test d/ to verify that EmptyArray only allows an empty array and rejects non empty arrays. The existing EmptyObject type can serve as a reference for implementation and testing.