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@sumor/validator

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@sumor/validator

This is a lightweight validator for Node.JS. It can validate the input string or number based on the rules you defined.

  • 1.0.1
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validator

A Sumor Cloud Tool.
More Documentation

This is a lightweight validator for Node.JS. It can validate the input string or number based on the rules you defined.

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Installation

npm i @sumor/validator --save

Prerequisites

Node.JS version

Require Node.JS version 16.x or above

require Node.JS ES module

As this package is written in ES module, please change the following code in your package.json file:

{
  "type": "module"
}

Usage

Validate String Usage

import { validate } from '@sumor/validator'

const parameterInfo = {
  type: 'string',
  required: true,
  length: 10,
  rule: [
    // only allow a-z, A-Z, 0-9
    {
      id: 'ONLY_CHAR_DIGIT',
      expression: '^[a-zA-Z0-9]*$',
      message: 'only allow a-z, A-Z, 0-9'
    },
    // need include demo
    {
      id: 'INCLUDE_DEMO',
      expression: 'demo',
      message: 'need include demo'
    },
    // use function to check
    {
      id: 'LENGTH_GREATER_THAN_5',
      expression: value => {
        return value.length > 5
      },
      message: 'length should be greater than 5'
    }
  ],
  i18n: {
    zh: {
      ONLY_CHAR_DIGIT: '只允许输入字母和数字',
      INCLUDE_DEMO: '需要包含demo',
      LENGTH_GREATER_THAN_5: '长度应大于5'
    },
    'zh-TW': {
      ONLY_CHAR_DIGIT: '只允許輸入字母和數字',
      INCLUDE_DEMO: '需要包含demo',
      LENGTH_GREATER_THAN_5: '長度應大於5'
    }
  }
}

const messages1 = validate(parameterInfo, 'demo123456')
console.log(messages1) // []

const messages2 = validate(parameterInfo, 'de1234567')
console.log(messages2) // [ 'only allow a-z, A-Z, 0-9' ]

const messages3 = validate(parameterInfo, 'demo!')
console.log(messages3) // [ 'only allow a-z, A-Z, 0-9', 'need include demo' ]

const messages4 = validate(parameterInfo, 'de!mo')
console.log(messages4) // [ 'only allow a-z, A-Z, 0-9', 'need include demo' ]

const messages5 = validate(parameterInfo, 'de')
console.log(messages5) // [ 'only allow a-z, A-Z, 0-9', 'need include demo', 'length should be greater than 5' ]

// translate to zh
const messages6 = validate(parameterInfo, 'de', 'zh')
console.log(messages6) // [ '只允许输入字母和数字', '需要包含demo', '长度应大于5' ]

// translate to zh-TW
const messages7 = validate(parameterInfo, 'de', 'zh-TW')
console.log(messages7) // [ '只允許輸入字母和數字', '需要包含demo', '長度應大於5' ]

Validate Number Usage

import { validate } from '@sumor/validator'

const parameterInfo = {
  type: 'number',
  required: true,
  rule: [
    // need greater than 5
    {
      id: 'GREATER_THAN_5',
      expression: value => {
        return value > 5
      },
      message: 'value should be greater than 5'
    }
  ],
  i18n: {
    zh: {
      GREATER_THAN_5: '值应大于5'
    },
    'zh-TW': {
      GREATER_THAN_5: '值應大於5'
    }
  }
}

const messages1 = validate(parameterInfo, 6)
console.log(messages1) // []

const messages2 = validate(parameterInfo, 5)
console.log(messages2) // [ 'value should be greater than 5' ]

const messages3 = validate(parameterInfo, 4)
console.log(messages3) // [ 'value should be greater than 5' ]

// translate to zh
const messages4 = validate(parameterInfo, 4, 'zh')
console.log(messages4) // [ '值应大于5' ]

// translate to zh-TW
const messages5 = validate(parameterInfo, 4, 'zh-TW')
console.log(messages5) // [ '值應大於5' ]

Format String Usage

import { format } from '@sumor/validator'

const parameterInfo = {
  type: 'string'
}

const value1 = format(parameterInfo, ' demo ')
console.log(value1) // will print "demo", useless space will be removed

Format Number Usage

import { format } from '@sumor/validator'

const parameterInfo = {
  type: 'number',
  decimal: 2
}

const value1 = format(parameterInfo, 1.234)
console.log(value1) // will print 1.23, only keep 2 decimal

const value2 = format(parameterInfo, '1.234')
console.log(value2) // will convert to number 1.23, only keep 2 decimal

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Package last updated on 19 May 2024

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