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dlabs-utils

v1.0.0

Published

一个现代化的 TypeScript 工具函数库

Downloads

1

Readme

dlabs-utils

一个现代化的 TypeScript 工具函数库,提供了常用的字符串、数组、对象和日期处理函数。

安装

npm install dlabs-utils

功能特性

  • 完整的 TypeScript 类型支持
  • 支持 ESM 和 CommonJS 模块规范
  • 包含字符串、数组、对象和日期处理等常用工具函数
  • 代码轻量化,可按需引入

使用示例

import { capitalize, unique, deepClone, formatDate } from 'dlabs-utils';

// 字符串处理
console.log(capitalize('hello')); // 'Hello'

// 数组操作
console.log(unique([1, 1, 2, 3])); // [1, 2, 3]

// 对象处理
const obj = { a: 1, b: { c: 2 } };
const cloned = deepClone(obj);

// 日期格式化
console.log(formatDate(new Date(), 'YYYY-MM-DD')); // '2024-03-20'

API 文档

字符串工具

  • capitalize(str: string): string - 首字母大写
  • camelToKebab(str: string): string - 驼峰命名转连字符命名
  • kebabToCamel(str: string): string - 连字符命名转驼峰命名
  • truncate(str: string, length: number): string - 截取字符串并添加省略号

数组工具

  • unique<T>(arr: T[]): T[] - 数组去重
  • groupBy<T>(arr: T[], key: keyof T): Record<string, T[]> - 数组分组
  • flatten<T>(arr: (T | T[])[]): T[] - 数组扁平化
  • random<T>(arr: T[]): T - 获取数组中的随机元素

对象工具

  • deepClone<T>(obj: T): T - 基础深拷贝对象
  • deepClonePlus<T>(target: T, cache?: WeakMap<object, unknown>): T - 增强版深拷贝函数
    • 支持循环引用的处理
    • 支持特殊类型的克隆:
      • 基本类型(String、Number、Boolean、Symbol、BigInt)
      • 内置对象(Date、RegExp、Error)
      • 集合类型(Map、Set)
      • DOM节点(仅浏览器环境)
      • 数组和普通对象
    • 参数说明:
      • target: 要克隆的目标对象
      • cache: 可选的WeakMap,用于处理循环引用
    • 使用示例:
    // 处理循环引用
    const obj: any = { a: 1 };
    obj.self = obj;
    const cloned = deepClonePlus(obj);
      
    // 克隆特殊类型
    const date = new Date();
    const dateClone = deepClonePlus(date);
      
    const map = new Map([[{ key: 1 }, { value: 2 }]]);
    const mapClone = deepClonePlus(map);
  • get(obj: any, path: string | string[], defaultValue?: any): any - 获取对象指定路径的值
  • merge<T extends object>(target: T, ...sources: Partial<T>[]): T - 合并对象
  • removeEmpty<T extends object>(obj: T): Partial<T> - 移除对象中值为 null 或 undefined 的属性
  • copyProperties<T extends object, U extends object>(source: T, target: U, options?: CopyPropertiesOptions | (keyof T)[]) - 将源对象的属性复制到目标对象
    • options.full?: boolean - 是否拷贝所有属性(包括原型链上的属性),默认false
    • options.excludes?: string[] - 排除的属性列表
    • options.includes?: string[] - 包含的属性列表
    • options.deep?: boolean - 是否深拷贝属性值,默认false

日期工具

  • formatDate(date: Date | number, format?: string): string - 格式化日期
  • getRelativeTime(date: Date | number): string - 获取相对时间描述
  • addDays(date: Date, days: number): Date - 添加天数
  • isSameDay(date1: Date, date2: Date): boolean - 判断是否为同一天

开源协议

MIT