regular expression for email validation

Try testing the following form with valid and invalid email addresses. The Code uses JavaScript to match the users input with a regular expression. Function code: Copy Code code as follows: function Validate (Form_id,email) { var reg =/^ ([a-za-z0-9_\-\.]) +\@ ([a-za-z0-9_\-\.]) +\. ([a-za-z]{2,4}) $/

The regular expression (regular expression) describes a pattern of string matching that can be used to check whether a string contains a seed string, replace a matched substring, or remove a substring from a string that matches a certain condition. This article mainly introduces the PHP

Try testing the following form with valid and invalid email addresses. Code uses javascript to match the users input with a regular expression. Function Code: Copy codeThe Code is as follows: function validate (form_id, email ){ Var reg =/^ ([A-Za-z0-9 _ \-\.]) + \ @ ([A-Za-z0-9 _ \-\.]) + \. ([A-Za-z] {2, 4}) $ /; Var

= [nspredicatepredicatewithformat:@ "selfmatches%@",cartyperegex]; return[cartestevaluatewithobject:cartype];} //User name + (BOOL) validateusername: (nsstring*) name{nsstring *usernameregex=@ "^[a-za-z0-9]{6,20}+$"; nspredicate* Usernamepredicate=[nspredicatepredicatewithformat:@ "selfmatches%@",userNameRegex]; BOOLB=[userNamePredicateevaluateWithObject:name]; Returnb;} //password + (BOOL) validatepassword: (nsstring*) password{nsstring *passwordregex=@ "^[a-za-z0-9]{6,20}+$"; nspredicate* pass

=@"^[A-Za-z0-9]{6,20}+$";NSPredicate*userNamePredicate=[NSPredicatepredicateWithFormat:@"SELFMATCHES%@",userNameRegex];BOOL B=[userNamePredicateevaluateWithObject:name];returnB;}//密码+(BOOL)validatePassword:(NSString*)passWord{NSString*passWordRegex=@"^[a-zA-Z0-9]{6,20}+$";NSPredicate*passWordPredicate=[NSPredicatepredicateWithFormat:@"SELFMATCHES%@",passWordRegex];return[passWordPredicateevaluateWithObject:passWord];}//昵称+(BOOL)validateNickname:(NSString*)nickname{NSString*nicknameRegex=@"^[\u4e

JavaScript Tutorials Phone, QQ, mobile phone, ID number, email address, post regular expression validation code

write a regular was lazy, without the regular expression validation of this situation, He might have thought it was a bit of a hassle, and maybe there was too little mail, Did not hear a letter of the top-level domain to provide the mailbox service, also did not see that mailbox username is a letter, so did not writ

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

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

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

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

e-mail address validation Regular expression e-mail address verification in Dedecms Copy Code code as follows: $email = "test@jb51.com"; Mailbox Format Check function Checkemail ($email) { Return Eregi ("^[0-9a-z][a-z0-9\._-]{1,}@[a-z0-9-]{1,}[

REGEXP: is shorthand for regular expressions (regular expression). A regular expression describes the pattern object of a character. You can use regular expressions to describe what you want to retrieve. A simple pattern can be

The regular expression looks like a big push symbol, makes people very big, I want to believe that many people just come to see when the headache, I also. But not to learn and not to, this is a very important thing, today here is a summary of some of the sharing of the regular expression registry

PHP user registration Information Validation regular expression, user registration regular expression The following method of verifying the username is the principle that the user name must be composed of alphanumeric bands with a dash, let's take a look at the example belo

When it comes to regular expressions, there are a lot of common expressions on the web, but in fact, the general people are unwilling to go to the study, is to take it directly with the line. However, in fact, there may be times when the actual situation in the project or the company is different, we have to modify the regular expression, according to the actual

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