问递归删除嵌套json对象中包含空数组的对象

EN

{"op":"1","parameters":[{"op":"2-1","parameters":[]},{"op":"2-2","parameters":[1,2]}]}

function removeEmptyArray(cJSON){
    if(!cJSON)
        return cJSON;

    for(var i=cJSON.parameters.length-1;i>=0;i--){
        if(!(cJSON.parameters[i].parameters instanceof Array))
            continue;
        if(cJSON.parameters[i].parameters.length==0){
            cJSON.parameters.splice(i,1);
        }else{
            cJSON.parameters[i] = removeEmptyArray(cJSON.parameters[i]);
        }
    }
    return cJSON;

}

{"op":"1","parameters":[{"op":"2-1","parameters":[{"op":"3-1","parameters":[]}]},{"op":"2-2","parameters":[1,2,3]}]}