JavaScript determines whether the email and mobile phone format entered by the user is correct_javascript skills

Copy code The code is as follows:

/*
* Function: Determine whether the email format entered by the user is Correct
* Parameters passed: None
* Return value: true or false
*/
function form_check() {
var email = document.getElementById("email").value; / /Get email address
//Judge whether the email format is correct
if(!/^w ([- .]w )*@w ([-.]w )*.w ([-.]w ) *$/.test(email)) {
alert("Email format error!");
document.getElementById("email").focus(); //Let the email text box get focus
return false;
}
return true;
}
/*
* Function: Determine whether the format of the mobile phone number entered by the user is correct
* Parameters passed: None
* Return Value: true or false
*/
function checkMobile(s) {
var regu = /^[1][0-9][0-9]{9}$/;
var re = new RegExp(regu);
if (re.test(s)) {
return true;
} else {
return false;
}
}