Question

Possible Duplicates:
What does this mean in jquery $('#id', javascript_object);
What does $(''class for the same element', element) mean?
What does the second argument to $() mean?

Anyone know what are:

$('element', $$).function(){...};

(seen here)

And

$('element', this).function(){...};

(seen here)

?

Answer 1

$('.pblabel', this).text(newVal + '%');

Is the same thing as

$(this).find('.pblabel').text(newVal + '%');

In fact, that is the way it is rewritten and run internally. It is called the “context selector”.

From the jQuery source:

// HANDLE: $(expr, $(...))
} else if ( !context || context.jquery ) {
    return ( context || rootjQuery ).find( selector );

// HANDLE: $(expr, context)
// (which is just equivalent to: $(context).find(expr)
} else {
    return this.constructor( context ).find( selector );
}