This is how i fixed it. I striped the first & last forward slash
var ccount = 0;
var vcode = ^[a-z0-9\_\-\.]+[\@]{1}[a-z0-9]+[\.]{1}[a-z]{2,}$
var value = "useremail@gmail.com";
var regex = new RegExp(vcode,'i');
if (value != undefined && value != null && value != '') {
var res = regex.exec(vcode);
if (res == null) {
ccount++;
}
else {
}
}
else {
ccount++;
}
}