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check-data

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check-data

JS数据验证器

  • 1.6.11
  • Source
  • npm
  • Socket score

Version published
Weekly downloads
9
increased by80%
Maintainers
1
Weekly downloads
 
Created
Source

Installation

  npm install check-data --save

使用方法

let Validator = require('check-data')

let { error, data, $, ... } = Validator(data, options, constructor)

输入

  • data * - 输入验证数据,类型参考type选项

  • options * - 数据验证表达式,类型参考type选项

  • constructor Objcte - 自定义数据导出构造方法(可选)

输出

  • error String - 验证失败时返回的错误信息,验证成功时返回null

  • data Objcte - 经过验证、处理后导出数据(支持空值过滤,用于剔除对象中的空数组、空字符串、undefind、null)

  • ${name} Objcte - 由constructor对象中构造器生成的对象,命名与构造器名称一致(空值过滤)

选项说明

如果只想验证数据类型,可以直接在参数值上用数据类型赋值

通用选项

  • type * - 用于定义数据类型,可选类型有String、Number、Object、 Array、Date、Boolean、"ObjectId"、"MobilePhone",带引号字符串表示扩展类型(必选)

  • name String - 自定义参数名称,用于错误返回值中替换默认参数名

  • default * - 空值时的默认赋值

  • value * - 直接通过表达式赋值,类似于default选项,区别是不管值是否为空都将使用该值覆盖(优先级低于default,目前没有发现同时使用的应用场景)

  • allowNull Boolean - 是否允许为空,默认为true

  • and Array、Function - 声明依赖的参数名数组,支持数组和函数两种表达式,函数表达式用于声明指定值的依赖关系。要求依赖的所有参数都不能为空

  • or Array、Function - 与and相似,区别是只要求依赖的其中一个参数不为空即可

  • method Function - 参数自定义转换方法,非空值时执行

内置数据类型(用构造函数表示)

String
  • minLength Number - 限制字符串最小长度

  • maxLength Number - 限制字符串最大长度

  • reg RegExp - 正则表达式验证

  • in Array - 匹配多个可选值中的一个

Number
  • min Number - 限制最小值

  • max Number - 限制最大值

  • in Array - 匹配多个可选值中的一个

  • to * - 类型转换,仅支持Boolean值

Date、Array、Object、Boolean

目前仅支持类型验证

扩展类型(用字符串表示)

'MongoId'

验证mongodb中的ObjectId

'MobilePhone'

验证手机号

'Email'

验证Email

验证示例

输入数据
  let json = {
     "username": "测试",
     "tenderNum": "123456789987",
     "time": "2017-07-07T09:53:30.000Z",
     "files": ["abc.js", "334", "null", "666", , , "kkk.js"],
     "user": {
        "username": "莉莉",
        "age": 18,
     },
     "list": [
        {
           "username": "吖吖",
           "age": 16,
        },
        {
           "username": "可可",
           "age": 15,
        }
     ],
     "auth": {
           "weixin": "abc",
     },
     "beneficiariesName": "莉莉",
     "guaranteeMoney": 2,
     "guaranteeFormat": 0,
     "addressee": "嘟嘟",
     "receiveAddress": "北京市",
     "phone": "18666666666",
     "coupon": "uuuu",
     "integral": {
           "lala": 168,
           "kaka": "3"
     },
     "search": "深圳",
     "email": "xxx@xx.xx",
     "keys": {
           a: "1",
           b: 2,
           c: 666,
           d: 4,
     }
  }
验证表达式
  let { error, data, filter } = Validator(json,
     {
        "username": {
           "type": String,
           "name": "用户名",
           "allowNull": false
        },
        "tenderNum": String,
        "time": {
           "type": Date,
           "name": "时间",
           "allowNull": false,
        },
        "user": {
           "username": String,
           "age": Number,
        },
        "list": [{
           "username": String,
           "age": Number,
        }],
        "auth": {
           "weixin": String,
        },
        "beneficiariesName": String,
        "guaranteeMoney": {
           "type": Number,
           "in": [1, 2]
        },
        "files": [{
           "type": String,
           "allowNull": false,
        }],
        "guaranteeFormat": {
           "type": Number,
           "conversion": Boolean
        },
        "addressee": {
           "type": String,
           "value": "直接通过表达式赋值"
        },
        "search": String,
        "phone": {
           "type": "MobilePhone"
        },
        "receiveAddress": String,
        "coupon": {
           "type": String,
           method(value) {
              return { "$gt": new Date() }
           }
        },
        "integral": {
           "lala": {
              "type": Number,
           },
           "kaka": {
              "type": Number,
              "in": [1, 2, 3],
           }
        },
        "email": {
           "type": 'Email',
        },
        "keys": {
           "$": {
              type: Number,
           }
        },
     },
     {
        filter() {
           let { search, email, integral } = this
           return {
              "email": email,
              "integral": integral,
              "test": {
                 a: 1,
                 b: undefined,
                 c: "",
                 d: null,
                 e: NaN,
                 e: 0,
              },
           }
        }
     }
  )

数组验证

  let { error, data } = Validator(["a.js", "b.js", "c.js"], [String])

具有相同数据结构、类型的复用验证表达式

  let { error, data } = Validator({
     "a": false,
     "b": false,
     "c": true,
     "d": true,
     "e": false,
     "f": true,
     "g": true,
  }, {
     $: Boolean,
  })

扩展数据类型验证

  let { error, data } = Validator({
     "id": "5968d3b4956fe04299ea5c18",
     "mobilePhone": "18555555555",
  }, {
     "id": "ObjectId",
     "mobilePhone": "MobilePhone"
  })

and

  let { error, data } = Validator({
     "username": "莉莉",
     "addressee": "嘟嘟",
  }, {
     "username": {
        "type": String,
        // 使用数组表达式
        "and": ["addressee", "address"],
     },
     "addressee": {
        "type": String,
        "allowNull": true
     },
     "address": {
        "type": String,
        "allowNull": true,
        // 使用函数表达式,表示特定值的依赖关系
        and(value){
           if (value === 1) {
              return ["addressee", "address"]
           } else if (value === 2) {
              return ["username", "xx"]
           }
        },
     }
  })

or

  let { error, data } = Validator({
     "username": "莉莉",
     "addressee": "嘟嘟",
  }, {
     "username": {
        "type": String,
        "or": ["addressee", "address"]
     },
     "addressee": {
        "type": String,
        "allowNull": true
     },
     "address": {
        "type": String,
        "allowNull": true
     }
  })

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Package last updated on 25 Sep 2017

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