JS verification email address format method summary _ javascript tips-js tutorial

This article mainly introduces the method of verifying the mail address format in JS, and analyzes the skills related to verifying the mail format in JavaScript based on regular expressions in the form of two instances, which has some reference value, for more information about how to verify the email address format in JS, see the example in this article. We will share this with you for your reference. The details are as follows:

Example 1:

The Code is as follows:

Function checkRate (input) {var re =/^ [_". 0-9a-z-] + @ ([0-9a-z] [0-9a-z-] + ".) {1, 4} [a-z] {2, 3} $/I; var nubmer = document. getElementById (input ). value; if (! Re. test (nubmer) {alert ("Enter the email address in the correct format"); document. getElementById (input). value = ""; return false ;}}

Example 2: