concept
Regular expressions are a logical formula for string operations, which is to use some specific characters defined in advance and combinations of these specific characters to form a "rule string". This "rule string" is used to express a filtering logic for strings.
Introduction
Regular expressions are a logical formula for operating strings (including ordinary characters (such as letters between a to z) and special characters (called "metacharacters"). They are to use some specific characters defined in advance and the combination of these specific characters to form a "rule string". This "rule string" is used to express a filtering logic for strings. A regular expression is a text pattern that describes one or more strings to match when searching for text.
Front-end regular expression verification is often the most numerous and complex, so I have sorted out some regular expressions I have used recently, hoping that it will be helpful to everyone!
/* Legal uri */
export function validateURL(textval) {
const urlregex = /^(?:http(s)?:\/\/)?[\w.-]+(?:\.[\w\.-]+)+[\w\-\._~:/?#[\]@!\$&'\*\+,;=.]+$/
return (textval)
}
/* Lowercase letters */
export function validateLowerCase(str) {
const reg = /^[a-z]+$/
return (str)
}
/* uppercase letter */
export function validateUpperCase(str) {
const reg = /^[A-Z]+$/
return (str)
}
/* uppercase and uppercase letters */
export function validateAlphabets(str) {
const reg = /^[A-Za-z]+$/
return (str)
}
/* Market price */
export function validatePrice(str) {
const reg = /(^[1-9]\d*(\.\d{1,2})?$)|(^0(\.\d{1,2})?$)/
return (str)
}
/* Inventory warning value Match non-negative integers (positive integer + 0) */
export function validatestockWarn(str) {
const reg = /^(0|[1-9][0-9]*)$/
return (str)
}
/* Price comparison website Only verify JD and Suning websites */
export function validateCompareWebsite(str) {
const reg = /^((https\:\/\/[0-9a-zA-Z\_]+\.|http\:\/\/[0-9a-zA-Z\_]+\.|https\:\/\/|http\:\/\/)|([0-9a-zA-Z\_]+\.){0,1})(jd|suning)\.(com$|com\/[\S]*)/i
return (str)
}
/* Landline phone */
export function validateTelephone(str) {
const reg = /^(\(\d{3,4}\)|\d{3,4}-|\s)?\d{7,14}$/
return (str)
}
/* phone number */
export function validatePhoneNumber(str) {
const reg = /^[1][3,4,5,6,7,8,9][0-9]{9}$/
return (str)
}
/* Mobile phone number and landline phone */
export function validatePhTelNumber(str) {
const reg = /^((0\d{2,3}-\d{7,8})|(1[3456789]\d{9}))$/
return (str)
}
/* Email */
export function validateEmail(str) {
const reg = /^[A-Za-z0-9\u4e00-\u9fa5]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/
return (str)
}
/* post code */
export function validateZipCode(str) {
const reg = /^[1-9][0-9]{5}$/
return (str)
}
/* ID card */
export function validateIDCard(str) {
const reg = /(^\d{15}$)|(^\d{18}$)|(^\d{17}(\d|X|x)$)/
return (str)
}
/* Bank card number 15 or 16 or 19 */
export function validateBank(str) {
const reg = /^([1-9]{1})(\d{14}|\d{18}|\d{15})$/
return (str)
}
/* Taxpayer identification code */
export function validateTaxpayer(str) {
const reg = /^([1-9]{1})(\d{14}|\d{18}|\d{15})$/
return (str)
}
/* Match all spaces */
export function validateAllBlank(str) {
const reg = /^\s+$/gi
return (str)
}
Summarize
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