email validation in javascript using regular expression

Use the js regular expression to verify the mobile phone number, email address, and zip code. If you want to verify your mobile phone number, you can refer to it for reference. (11 digits are entered at the beginning of "13" and "158,159) The Code is as follows: Var re;Var ss = document. getElementById ('textbox3 '). value;Re =/^ (13 [0-9] {9}) | (15 [89] [0-9]

, -}$ the correct format is: Start with a letter, length in 6-18, only characters, numbers, and underscores can be included. Verify that you contain^%',; =?$\ "and other characters:[^%',; =?$\x22]+Verify Kanji:^[\u4e00-\u9fa5],{0,}$ Verify email address:^\w+[-+.] \w+) *@\w+ ([-.] \w+) *\.\w+ ([-.] \w+) *$ verify InternetURL:^http://([\w-]+\.) +[\w-]+ (/[\w-./?%=]*)? $; ^[a-za-z]+://(w+ (-w+) *) (. ( w+ (-w+) *) * (? s*)? $ verify Phone Number:^ (\ (\d

The most common verification is email address verification. Websites are common. Various web scripts also use regular expressions "(Regular Expression) Verify the email address we entered to determine whether the email address is

, including excepting, 1, 3, 5, 7, 8, 10, December all included 31st(0[13578]|1[02])-31)All other dates except February 29 in a leap year(?! 0000) [0-9]{4}-(0[1-9]|1[0-2])-(0[1-9]|1[0-9]|2[0-8]) | ( 0[13-9]|1[0-2])-(29|30) | (0[13578]|1[02])-31) Then we'll solve the second difficulty: Leap year considerations. Based on the definition of leap years, we can divide a leap year into two categories: 1 years that can be divisible by 4 but not divisible by 100. Looking for the change rule of the latt

expression.PHP Mailbox Validation Regular expression Novice instance: Copy Code code as follows: function Isemail ($email) { if (Preg_match (/^[0-9a-za-z]+@ ([0-9a-za-z]+) [.]) +[a-z]{2,4}$/i ", $email)) { Return ' is the mailbox '; } else{ Return ' n

1. The type attribute of input in html5 already has tel, number, and email. Do I need to write regular expressions for verification? 2. In html5, a total of 13 new types of input type attributes are added. I have summarized these 13 attributes, namely, the type attributes: color (define color picker), date (set... 1. The type attribute of input in html5 already has tel, number, and

= =) Alert (/^-?\d+\.\d+$/.test (This.value));"/>Real numbers:"text"Size=" -"onkeydown="if (Event.keycode = =) Alert (/^-?\d+ (\.\d+) $/.test (This.value));"/>Keep 1 decimal places:"text"Size=" -"onkeydown="if (Event.keycode = =) Alert (/^-?\d+ (\.\d{1,1})? $/.test (This.value));"/>Keep 2 decimal places:"text"Size=" -"onkeydown="if (Event.keycode = =) Alert (/^-?\d+ (\.\d{1,2})? $/.test (This.value));"/>Keep 3 decimal places:"text"Size=" -"onkeydown="if (Event.keycode = =) Alert (/^-?\d+ (\.\d{

The regular expression validation password feature is often used in the project, but a lot of friends still do not use the password regular expression to verify, this article small series for everyone to organize the PHP password verification

Php email address regular expression verification and email address regular expression. Regular expression verification for php mail address

＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃# Author: Rain wave All rights reserved, duplicate say ##qq:270499458 #＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃Recently some friends who have just learned regular expressions ask me how to use in ASP. Oh Although it is simple, write it, the basic knowledge of regular expressions I will not say. In fact, there are many such articles. ：（##### function Code ########assumed to be myfunc.asp'

Common regular expression of the encyclopedia! (For example: matching Chinese, matching HTML) Matching regular expressions for Chinese characters: [U4E00-U9FA5] Commentary: Matching Chinese is really a headache, with this expression will be easy to do Match Double-byte characters (including Chinese characters): [^x0

Regular Expression (including Hong Kong, Macao and Taiwan) and jQuery Regular Expression for verifying mobile phone number email ID card I have never used the regular expression verific

The regular expression verifies the ID card number and email address, determines the checked selected status, and the regular expression checked The project is well written to login registration. When the blur event is used to verify user input content, a bug occurs. Finally

Php Regular Expression verification (email address, Url address, phone number, zip code), regular expression url Content to be verified in this example:Email Address, Url address, phone number, zip codeThe verification method is shared with you for your reference. The detail

−z0−9]+\.[ a−za−z0−9]+[\/=\?/Idcard:/^\d{15} (\d{2}[a-za-z0-9)?/qq:/[1−9]\d4,8/qq:/[1−9]\d4,8/ A special Amount:/^ ((\d{1,3} (, \d{3}) *) | ( \d+)) (\.\d{2})? $/ Note: In addition to the "XXX xx,xxx xx,xxx.00" format for the above provide each JS verification method provided. Trim () property string.prototype.trim=function () {return This.replace (/(^\s*) | ( \s*$)/g, ""); Call: The above is a small set to introduce the JS