Jquery 'this' keyword and selector's basic filters

Question

When using the 'this' keyword in jQuery, what is the syntax for adding basic filters.

For example:

$(this):contains('foo')

$(this):visible OR $(this:visible)

Answer 1

use this syntax: jQuery( expression, [context] )

$(":contains(foo)", this)
$(":visible", this)
$("any-selector", this)

Answer 2

That's what the filter() method is for:

$(this).filter(":contains(foo)");
$(this).filter(":visible")

According to the docs:

Removes all elements from the set of matched elements that do not match the specified expression(s).

Answer 3

For Searching for items within this:

$(':visible, any-selector', this)
$(this).find(':visible, any-selector')

if you want a true or false return:

if($(this).is(':visible, any-selector')){
    alert('this is visible, or matches "any-selector");
    }
else{
    alert('this is hidden, or doesn't match "any-selector");
    }