jQuery Regex不触发if语句

Question

** EDIT ** The regex was not accepting lowercase. Adding i did the trick. Additionally I had to escape the \\ out again in order for the past part of the regex to work.

Working one for jquery is following:

var email = new RegExp('^[A-Z0-9._%+-]+@[A-z0-9.-]+\\.[A-Z]{2,4}$', 'i');

I want to verify an email with a regex.

In my current code I see that it is executing the function but not going into the if statement even though the regex matches.

$('#email').keyup(function() {
    var INPUT = $(this).val();
    var email = new RegExp('^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$');
    if (email.test(INPUT)) {
        console.log('inside the if');
    }
    console.log('Outside the if');
});

Answer 1

Regex seems fine, just need to set the case insensitive flag:

$('#email').keyup(function() {
    var INPUT = $(this).val();
    var email = new RegExp('^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$', 'i');
    if (email.test(INPUT)) {
        console.log('inside the if');
    }
    console.log('Outside the if');
});