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lwl-operatedata

v1.1.4

Published

用于操作本地数据 存储js、json数据

Downloads

39

Readme

lwl-operatedata 内置两个class类

npm install lwl-operatedata

内置一个 - createDataBase类, 用于创建本地数据库,创建数据表及删除

内置一个 - operatedata类, 用于操作本地数据,增删改查以及其他扩展功能

createDataBase - Funtions

const { createDataBase } = require('lwl-operatedata')
const createData = new createDataBase()
  1. createDataSheet 创建数据表
  2. deleteDataSheet 删除数据表
  3. getDataSheet 获取数据表列表

[!!!] 要使用以上方法,必须先调用 new createDataBase()

createData.createDataSheet('user.js') // 创建js格式数据表
createData.createDataSheet('user.json') // 创建json格式数据表
createData.deleteDataSheet('user.json')
createData.getDataSheet()

operatedata

const { operatedata } = require('lwl-operatedata')
const oD = new operatedata('user.json') // 指定操作的数据表 js 或 json 数据格式
  1. set 设置数据表数据 (直接覆盖!)
  2. get 获取数据表中的数据
  3. push 往数据表中追加数据
  4. unshift 往数据表前插入数据
  5. find 查找数据表中的数据
  6. filter 筛选数据表中的数据
  7. slice 截取数据表中的数据
  8. delete 删除数据表中的数据
  9. getData 获取数据表中的某一条数据
  10. count 获取数据表数据的总数

[!!!] 要使用以上方法,必须先调用 new operatedata()

oD.set([{ id: 1, name: '张三', age: 18 }])
await oD.get() // 调用方式一
oD.get(data => console.log(data)) // 调用方式二
oD.push({ id: 2, name: '李四', age: 20 })
oD.unshift({ id: 3, name: '王五', age: 22 })
// 查找单个数据
await oD.find('id', 1) // 调用方式一
oD.find('id', 1, data => console.log(data)) // 调用方式二
// 查找多条数据
await oD.find('id', [1, 2, 3]) // 调用方式一
oD.find('id', [1, 2, 3], data => console.log(data)) // 调用方式二
await oD.filter('id', 1) // 调用方式一
oD.filter('id', 1, data => console.log(data)) // 调用方式二
await oD.slice(0, 1) // 调用方式一
oD.slice(0, 1, data => console.log(data)) // 调用方式二
await oD.delete('id', 1)
await oD.getData(1) // 调用方式一
oD.getData(1, data => console.log(data)) // 调用方式二
await oD.count()