RegExp用于验证PRICE [英] RegExp for validating PRICE

问题描述

我正在尝试验证价格字段：

I am trying to validate a Price field:

不允许：

• 空格


• 字母


• 负值

应该允许：

• 数字


• 逗号


• 小数

推荐答案

RegExp用于验证价格字段：

RegExp for validating Price Fields:

/^(\d*([.,](?=\d{3}))?\d+)+((?!\2)[.,]\d\d)?$/

解释演示： http：// regex101.com/r/uG5lI0/1

/^(\d*([.,](?=\d{3}))?\d+)+((?!\2)[.,]\d\d)?$/.test(input)

将仅验证是否格式正确，各自位置带点或逗号。

Will validate only if in correct format, with dots or commas in their respective places.

en_US语言环境的国际格式&美国国家格式：

International format for the en_US locale & US national format:

• 134.56


• 1,234.56


• 2,991,234.00

意大利国家格式，包含2位小数：

Italian national format with 2 decimals:

• 134,56


• 21.234,56


• 1.234,56


• 9.321.234,56

• 134,56
• 21.234,56
• 1.234,56
• 9.321.234,56

de_DE语言环境的国际格式：

International format for the de_DE locale:

• 134,56


• 1234,56


• 98281234,56

小数是可选的，对全部金额进行验证：

Decimals are optional, validation for whole amounts:

• 1234


• 1,234


• 2,991,234


• 1.234


• 9.321.234

• 1234
• 1,234
• 2,991,234
• 1.234
• 9.321.234

function validatePrice(input) {
  return /^(\d*([.,](?=\d{3}))?\d+)+((?!\2)[.,]\d\d)?$/.test(input);
}

['WRONG',
  '1,234,56',
  '1.234.56',
  '-1993',
  '918,27.63',
  '122.42.24',
  '1,89,2',
  '',
  'Intl. format & US national format',
  '2.56',
  '14.56',
  '134.56',
  '1,234.56',
  '2,991,234.00',
  '',
  'Italian national format with 2 decimals',
  '9,56',
  '24,56',
  '134,56',
  '721.234,56',
  '21.234,56',
  '1.234,56',
  '9.321.234,56',
  '69.321.234,56',
  '269.321.234,56',
  '1.269.321.234,56',
  'International format for the de_DE locale',
  '1,56',
  '14,56',
  '134,56',
  '1234,56',
  '98281234,56',
  'No cents',
  '1',
  '14',
  '134',
  '1,234',
  '2,991,234',
  '9',
  '24',
  '134',
  '1.234',
  '9.321.234',
  '1',
  '14',
  '134',
  '1234',
  '98281234'
].forEach(function(n) {
  document.getElementById('results').innerHTML += "'" + n + "' => " + validatePrice(n) + "<br>";
})

<div id="results"></div>

这篇关于RegExp用于验证PRICE的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！