function () {
        var result = {},
            fields = this.fields, 
            key, field;
            
        for (key in fields) {
            if (fields.hasOwnProperty(key)) {
                field = fields[key];
                if (field.isValid() && field.getValue() !== null) {
                    result[key] = field.getValue();
                }
            }
        }
        return result;
    }
function () {
        var result = {},
            fields = this.fields, 
            key, field;
            
        for (key in fields) {
            if (fields.hasOwnProperty(key)) {
                field = fields[key];
                if (field.isValid() && field.getValue() !== null) {
                    result[key] = field.getValue();
                }
            }
        }
        return result;
    }
function ( ) { var result = { } , fields = this . fields , key , field ; for ( key in fields ) { if ( fields . hasOwnProperty ( key ) ) { field = fields [ key ] ; if ( field . isValid ( ) && field . getValue ( ) !== null ) { result [ key ] = field . getValue ( ) ; } } } return result ; }
Get and return the value of the filter.
@return {String} The value of this filter
Get and return the value of the filter .