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常用函数

deepCopy, isEmpty, throttle, debounce, getBase64等等

安装

npm i wj-common-fn -S

使用

import { deepCopy, isEmpty, throttle, debounce, getBase64 } from 'wj-common-fn';
let a = [1];
let b = deepCopy(a);

函数列表

函数名称 说明 返回
deepCopy 深度克隆 deepCopy(o: any) any
isEmpty 是否为空 isEmpty(val: any) boolean
throttle 节流 throttle(fn: Function, wait: number) () => void
debounce 防抖 debounce(fn: Function, wait: number) () => void
getBase64 将文件转换成base64 getBase64(file) Promise
setCookie 设置cookie setCookie(name: string,value: string,config: CookieOptions = { type: "天", expires: 1 }) void
getCookie 获取cookie getCookie(key: string) string or false
delCookie 删除cookie delCookie(key: string) void
randomNumber 返回一个在范围内的随机数 randomNumber(n1: number, n2: number) number
changeCase 字母大小写切换, changeCase(str: string, type: number), type 数字 1:首字母大写、2:首母小写、3:大小写转换、4:全部大写、5:全部小写 string
arraySort 数组排序,arraySort(arr: number[], desc: ArrayDesc = "asc"),desc 排序方式 'asc'升序,'desc'降序 number[]
arrayObjSort 对象数组快速排序,arrayObjSort(arr: any[], key: string, desc: ArrayDesc = "asc"),key 排序依据关键字,desc 排序方式 'asc'升序,'desc'降序 any
arrayUnique 数组去重,arrayUnique(arr: any[]) any[]
arrayIntersection 数组的交集,arrayIntersection(arr1: any[], arr2: any[]) any[]
arrayMinus 数组的差集 arr1-arr2,arrayMinus(arr1: any[], arr2: any[]) any[]
arrayUnion 数组的并集,参数可以使多个,arrayUnion(...args) any[]
isClass 是否是类,isClass(obj: any, strict: boolean = true) boolean
getBase64ByUrl 实现将项目的图片路径转化成base64,getBase64ByUrl(img: string) Promise
getBase64Image 将DOM元素img转换为base4的主要方法,getBase64Image(img: HTMLImageElement,width?: number,height?:number) string
convertBase64ToBlob base64转Blob,convertBase64ToBlob(base64: string) Blob
toFileByUrl 将图片路径转换成file文件类型,toFileByUrl(url: string, name?: string) Promise
isJson 判断是否是json数据,isJson(obj) boolean
hideElements 隐藏制定的所有元素,hideElements(...el: HTMLElementTagNameMap[keyof HTMLElementTagNameMap][]) void
hasClassName 元素是否具有指定的类,hasClassName(el: HTMLElementTagNameMap[keyof HTMLElementTagNameMap], className: string) boolean
getScrollPosition 获取当前页面的滚动位置,getScrollPosition(el: any Window = window)
scrollToTop 滚动到顶部,scrollToTop() void
elementContains 父元素是否包含子元素,elementContains(parent: HTMLElementTagNameMap[keyof HTMLElementTagNameMap], child: HTMLElementTagNameMap[keyof HTMLElementTagNameMap]) boolean
elementIsVisibleInViewport 指定元素是否在视口可见,elementIsVisibleInViewport(el: HTMLElementTagNameMap[keyof HTMLElementTagNameMap], partiallyVisible = false) boolean
detectDeviceType 分辨设备是移动设备还是桌面设备,detectDeviceType() "Mobile" or "Desktop"
getURLParameters 获取当前 URL参数的对象,getURLParameters(url: string) {}
getDaysDiffBetweenDates 获取两个日期之间的天数间隔,getDaysDiffBetweenDates(dateInitial: number, dateFinal: number) number
counter 为指定选择器创建具有指定范围、步长和持续时间的计时器,counter(selector: string, start: number, end: number, step = 1, duration = 2000) NodeJS.Timeout
copyToClipboard 将一个字符串复制到剪贴板,copyToClipboard(str: string) void

github源代码

https://github.com/WJjack/wj-common-fn.git

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