function/selector to filter inputs by value

Is there a built-in function/selector in jQuery to开发者_JAVA技巧 filter the inputs by value?

I can create a custom selector:

$.extend($.expr[":"], {
    val: function(elem, index, match) {
       return $(elem).val() == match[3];
    }
});

and use it like this: $("input:val('Some text')").

I was just wondering if something like this already exists or maybe there is a better way.

It doesn't look like there's a built-in solution. But for a one-off selector, .filter() is an option:

$('input').filter(function() { return $(this).val() === 'Some text'; });

You can do this:

    $('input[value=someval]')

you can also chain it

    $('input[type=radio][value=someval]')

look here:

$.extend($.expr[":"], {
    val: function(elem, index, match) {
       return $.trim($(elem).val()) == $.trim(match[3]);
    }
});