Some valid selectors throw a syntax error when passed to jQuery.fn.is()

[elijahr]

var input; input = $('input').eq(0); try {

input.is(':focus');

} catch(e) { /* "Syntax error, unrecognized expression: Syntax error, unrecognized expression: focus" */ }

try {

input.is(':hover');

} catch(e) { /* "Syntax error, unrecognized expression: Syntax error, unrecognized expression: hover" */ }

[dmethvin]

Neither :focus nor :hover are supported selectors in jQuery. The complete list of supported selectors is here:

​http://api.jquery.com/category/selectors/

[anonymous]

It's working using jQuery('foo:hover'), so I wonder whether it's supported or not.