Function inspect

2.0.3/2.0.3.js:6968–6982

( dataType )

            seekingTransport = ( structure === transports );

        function inspect( dataType ) {
            var selected;
            inspected[ dataType ] = true;
            jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) {
                var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR );
                if( typeof dataTypeOrTransport === "string" && !seekingTransport && !inspected[ dataTypeOrTransport ] ) {
                    options.dataTypes.unshift( dataTypeOrTransport );
                    inspect( dataTypeOrTransport );
                    return false;
                } else if ( seekingTransport ) {
                    return !( selected = dataTypeOrTransport );
                }
            });
            return selected;
        }

        return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" );
    }