js-utils-lib v0.0.8

js-utils

This is a Js Functions Library

Install(npm)

npm install js-utils-lib

How to use

delay

delay(callFunc: Function, condition?: Function, interval?: number, timeout?: number): void

每隔一段时间判断条件是否满足，条件满足时执行函数

API

Demo

import { delay } from 'js-utils-lib'
let bool = false
let f = () => console.log('do somethings')
let c = () => (console.log(bool), bool)
setTimeout(() => bool = true, 2000)
delay(f, c)

getAllParentsByKey

function getAllParentsByKey(value: any, treeData?: any[], key: string, data?: any[], bFind?: boolean): any[] | {bFind: boolean, data: any[]}

根据指定key找出所有父节点

API

Demo

import { getAllParentsByKey } from 'js-utils-lib'
let treeData = [
  {
    id: '1',
    children: [
      {
        id: '1-1',
        children: [
          {
            id: '1-1-1',
          }
        ]
      }
    ]
  },
  {
    id: '2',
    children: [
      {
        id: '2-1'
      },
      {
        id: '2-2',
        children: [
          {
            id: '2-2-1',
          }
        ]
      }
    ]
  }
];
getAllParentsByKey('1-1-1', treeData)

arrayConcat

arrayConcat(...arr: any[]): any[]

连接数组(多参数)

Demo

  import { arrayConcat } from 'js-utils-lib'
  let arr = arrayConcat(1,2,[3,4])

treeToArray

treeToArray(treeData: any[], isDeep: boolean): any[]

树结构转数组

API

formatDate

formatDate(date?: Date, fmt?: string): string

格式化时间 将 Date 转化为指定格式的String

API

Demo

  import { formatDate } from 'js-utils-lib'
  console.log(formatDate(new Date(), 'yyyy-MM-dd hh:mm:ss.S'))

formatStringEllipsis

formatStringEllipsis(data: string, head: number, tail: number, maxLength: number): string

将较长的字符串 中间部分用...代替

API

Demo

  import { formatStringEllipsis } from 'js-utils-lib'
  console.log(formatStringEllipsis('12345678901234567890'))