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@51jbs/core-utils

v1.0.5

Published

纯JS工具库,框架无关,提供深拷贝、日期、数字精确计算等核心功能

Readme

@51jbs/core-utils

纯 JS 工具库,框架无关,提供深拷贝、日期、数字精确计算等核心功能

📦 安装

npm install @51jbs/core-utils

🚀 快速使用

import { deepClone, add, formatDate, maskPhone, local } from '@51jbs/core-utils'

// 深拷贝(支持循环引用)
const copy = deepClone(data)

// 精确数字计算
const result = add(0.1, 0.2)  // 0.3

// 日期格式化
const dateStr = formatDate(new Date(), 'YYYY-MM-DD HH:mm:ss')

// 手机号脱敏
const masked = maskPhone('13800138000')  // 138****8000

// 本地存储
local.set('user', { name: 'test' })
const user = local.get('user')

📚 API 文档

对象操作

import { deepClone, shallowClone, merge, isEmpty } from '@51jbs/core-utils'

// 深拷贝(解决 JSON.parse(JSON.stringify()) 的问题)
const copy = deepClone(obj)  // 支持循环引用、Date、RegExp、Symbol

// 浅拷贝
const copy2 = shallowClone(obj)

// 深度合并
const merged = merge(obj1, obj2, obj3)

// 判空
isEmpty({})  // true
isEmpty([])  // true
isEmpty('')  // true

数字操作

import { add, subtract, multiply, divide, formatNumber, formatCurrency } from '@51jbs/core-utils'

// 精确加法
add(0.1, 0.2)  // 0.3

// 精确减法
subtract(1.5, 1.2)  // 0.3

// 精确乘法
multiply(0.2, 0.1)  // 0.02

// 精确除法
divide(0.3, 0.1)  // 3

// 千分位格式化
formatNumber(123456.789)  // "123,456.79"

// 货币格式化
formatCurrency(1234.56)  // "¥1,234.56"

日期操作

import { formatDate, dateDiff, getRelativeTime, isToday } from '@51jbs/core-utils'

// 格式化日期
formatDate(new Date(), 'YYYY-MM-DD')  // "2025-12-15"
formatDate(Date.now(), 'HH:mm:ss')    // "21:30:00"

// 日期差值(天数)
dateDiff('2025-12-01', '2025-12-15')  // 14

// 相对时间
getRelativeTime(Date.now() - 60000)  // "1分钟前"

// 判断是否为今天
isToday(new Date())  // true

字符串操作

import { maskPhone, maskIdCard, maskEmail, isValidPhone } from '@51jbs/core-utils'

// 手机号脱敏
maskPhone('13800138000')  // "138****8000"

// 身份证脱敏
maskIdCard('110101199001011234')  // "110101********1234"

// 邮箱脱敏
maskEmail('[email protected]')  // "t***[email protected]"

// 验证手机号
isValidPhone('13800138000')  // true

// 其他工具
import { capitalize, camelToSnake, truncate, randomString } from '@51jbs/core-utils'

capitalize('hello')  // "Hello"
camelToSnake('userName')  // "user_name"
truncate('很长的文本...', 10)  // "很长的文本..."
randomString(8)  // "aB3dE9fG"

存储操作

import { local, session, storage } from '@51jbs/core-utils'

// LocalStorage
local.set('key', { data: 'value' })
local.get('key')  // { data: 'value' }
local.has('key')  // true
local.remove('key')

// SessionStorage
session.set('key', 'value')
session.get('key')

// 带过期时间的存储
storage.set('key', 'value', 60000)  // 60秒后过期
storage.get('key')  // 自动检查过期

数组操作

import { unique, groupBy, flatten, shuffle, sum, average, intersection, union, difference, chunk, paginate } from '@51jbs/core-utils'

// 数组去重
unique([1, 2, 2, 3])  // [1, 2, 3]

// 数组分组
groupBy([{name: 'Alice', age: 25}, {name: 'Bob', age: 25}], item => item.age)
// { '25': [{name: 'Alice', age: 25}, {name: 'Bob', age: 25}] }

// 数组扁平化
flatten([1, [2, [3, 4]]], 2)  // [1, 2, 3, 4]

// 数组乱序
shuffle([1, 2, 3, 4, 5])  // [3, 1, 4, 5, 2]

// 数组求和与平均值
sum([1, 2, 3, 4, 5])  // 15
average([1, 2, 3, 4, 5])  // 3

// 数组交集、并集、差集
intersection([1, 2, 3], [2, 3, 4])  // [2, 3]
union([1, 2], [2, 3])  // [1, 2, 3]
difference([1, 2, 3], [2, 3])  // [1]

// 数组分块和分页
chunk([1, 2, 3, 4, 5], 2)  // [[1, 2], [3, 4], [5]]
paginate([1, 2, 3, 4, 5], 2, 2)  // { data: [3, 4], total: 5, page: 2, pageSize: 2, totalPages: 3 }

URL 操作

import { parseUrlParams, buildUrlParams, buildFullUrl, isExternal, getQueryParam } from '@51jbs/core-utils'

// 解析 URL 参数
parseUrlParams('https://example.com?a=1&b=2')  // { a: '1', b: '2' }

// 构建 URL 参数
buildUrlParams({ a: 1, b: 2 })  // "a=1&b=2"

// 构建完整 URL
buildFullUrl('https://example.com', { a: 1 })  // "https://example.com?a=1"

// 检查是否为外部链接
isExternal('https://example.com')  // true

// 获取查询参数
getQueryParam('a', 'https://example.com?a=1')  // "1"

表单验证

import { isPhone, isEmail, isIdCard, validatePassword, validateUsername } from '@51jbs/core-utils'

// 验证手机号、邮箱、身份证
isPhone('13800138000')  // true
isEmail('[email protected]')  // true
isIdCard('110101199001011234')  // true

// 密码验证
validatePassword('Abc123')  // { valid: true, message: '密码符合要求' }

// 用户名验证
validateUsername('test_user')  // { valid: true, message: '用户名符合要求' }

设备检测

import { isMobile, isIOS, isAndroid, isWechat, getBrowserInfo } from '@51jbs/core-utils'

// 设备类型检测
isMobile()  // true/false
isIOS()  // true/false
isAndroid()  // true/false
isWechat()  // true/false

// 浏览器信息
getBrowserInfo()  // { name: 'Chrome', version: '98.0.4758.102' }

DOM 操作

import { addClass, removeClass, hasClass, scrollToElement, isInViewport } from '@51jbs/core-utils'

// 类名操作
addClass(element, 'active')
removeClass(element, 'active')
hasClass(element, 'active')

// 滚动到指定元素
scrollToElement('#target', { offset: 50 })

// 检查元素是否在视口中
isInViewport(element)

格式化工具

import { formatPhone, formatCurrency, formatDate, formatFileSize, formatBankCard, formatIdCard } from '@51jbs/core-utils'

// 格式化手机号
formatPhone('13800138000')  // "138****8000"

// 格式化金额
formatCurrency(1234.56)  // "¥1,234.56"

// 格式化文件大小
formatFileSize(1024)  // "1 KB"

// 格式化银行卡号
formatBankCard('6222021234567890')  // "6222 0212 3456 7890"

// 格式化身份证号
formatIdCard('110101199001011234')  // "110101********1234"

事件管理

import { EventBus, createEventBus, globalEventBus } from '@51jbs/core-utils'

// 使用全局事件总线
globalEventBus.on('update', (data) => console.log(data))
globalEventBus.emit('update', { message: 'hello' })

// 创建自定义事件总线
const bus = createEventBus()
const unsubscribe = bus.on('custom-event', (data) => console.log(data))
bus.emit('custom-event', { value: 123 })
unsubscribe()  // 取消订阅

HTTP 请求

import { http, createHttpClient } from '@51jbs/core-utils'

// 使用默认 HTTP 客户端
http.get('/api/users').then(data => console.log(data))
http.post('/api/users', { name: 'John' }).then(data => console.log(data))

// 创建自定义 HTTP 客户端
const client = createHttpClient({ baseURL: 'https://api.example.com' })
client.get('/users').then(data => console.log(data))

🎯 解决的问题

| 问题 | 解决方案 | |------|---------| | 64处不安全的深拷贝 | deepClone() 替代 JSON.parse(JSON.stringify()) | | 浮点数精度问题 | add/subtract/multiply/divide() 精确计算 | | 日期格式化重复 | formatDate() 统一格式化 | | 数据脱敏不统一 | maskPhone/maskEmail/maskIdCard() | | 存储操作繁琐 | local/session/storage 封装 | | 数组操作复杂 | unique/groupBy/shuffle/sum 等丰富数组工具 | | 表单验证重复 | isPhone/isEmail/validatePassword 统一验证 | | 设备检测困难 | isMobile/isIOS/isWechat 一键检测 |

📊 功能统计

  • 2000+行源码
  • 13个模块(object、number、date、string、storage、array、url、validation、device、dom、format、event、http)
  • 100+个函数

📄 License

MIT © Chuanjing Li