javascript validate email field

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}) $/

1, the type attribute of input in HTML5 already has tel, number, email, also need to write the regular to verify it? 2, the type attribute of input in HTML5 total is 13 new, I summed up the 13, respectively, the type of these attributes: color (definition Color picker), date (define Date field), DateTime (Define Date field), Datetime-local (defines the date

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