I've got this JavaScript function:
function emailaddresscheck() {
var emailregex = new RegExp("[A-Z0-9._%+-]+@[A-Z0-9.-]+\.(?:[A-Z]{2}|com|org|net|edu|gov|mil|biz|info|mobi|name|aero|asia|jobs|museum)");
var emailstring = $("#email-address").val();
if (emailregex.test(emailstring)) {
$("#email-address-check").fadeIn(100);
return true;
}
else if ($("#email-address").val().length <= 5) {
$("#email-address-check").fadeOut(100);
return false;
}
}
The if
condition is firing if I have a simple string in the RegExp constructor but this more complex regex isn't working.
Where am I going wrong?
UPDATE:
This is the finished working code:
function emailaddresscheck() {
var emailregexp = new RegExp("^[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\\.(?:[A-Za-z]{2}|com|org|net|edu|gov|mil|biz|info|mobi|name|aero|asia|jobs|museum)$");
var emailstring = $("#email-address").val();
if (emailregexp.test(emailstring) === true) {
$("#email-address-check").fadeIn(100);
return true;
}
else if (emailregexp.test(emailstring) === false) {
$("#email-address-check").fadeOut(100);
return false;
}
}
When you create a regex with the RegExp
constructor you need to double escape special characters since they are inside a string.
new RegExp("[A-Z0-9._%+-]+@[A-Z0-9.-]+\\.(?:[A-Z]{2}|com|org|net|edu|gov|mil|biz|info|mobi|name|aero|asia|jobs|museum)");
-^-
Or just use a literal regex:
/[A-Z0-9._%+-]+@[A-Z0-9.-]+\.(?:[A-Z]{2}|com|org|net|edu|gov|mil|biz|info|mobi|name|aero|asia|jobs|museum)/
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