插槽答案给出错误答案时返回未定义

Question

在我的测验中，我正在捕获用户的答案，并使用它

handlerInput.requestEnvelope.request.intent.slots.answer.resolutions.resolutionsPerAuthority[0].values[0].value.name

并将其与sessionAttributes中的答案集进行比较。问题是当给出错误答案时，请求对象看起来像这样，没有值可以与我的会话答案进行比较：

"request": {
                "type": "IntentRequest",
                "requestId": "amzn1.echo-api.request.1e4d598d-2cb8-45fa-80d7-4ea75f544401",
                "timestamp": "2020-05-09T15:12:37Z",
                "locale": "en-US",
                "intent": {
                    "name": "AnswerIntent",
                    "confirmationStatus": "NONE",
                    "slots": {
                        "answer": {
                            "name": "answer",
                            "confirmationStatus": "NONE"
                        }
                    }
                }
            }

当您给出正确答案时，插槽答案将被正确捕获，然后可以与sessionAttribute值进行比较：

"request": {
                "type": "IntentRequest",
                "requestId": "amzn1.echo-api.request.6da39547-7039-49f4-8138-a9105bb6f010",
                "timestamp": "2020-05-09T15:13:10Z",
                "locale": "en-US",
                "intent": {
                    "name": "AnswerIntent",
                    "confirmationStatus": "NONE",
                    "slots": {
                        "answer": {
                            "name": "answer",
                            "value": "project manager",
                            "resolutions": {
                                "resolutionsPerAuthority": [
                                    {
                                        "authority": "amzn1.er-authority.echo-sdk.amzn1.ask.skill.c933b50a-faf5-4f49-8551-838fc1f47fc4.QuizAnswers",
                                        "status": {
                                            "code": "ER_SUCCESS_MATCH"
                                        },
                                        "values": [
                                            {
                                                "value": {
                                                    "name": "Project manager",
                                                    "id": "00f87ea316ec965ecda65285f4e273b6"
                                                }
                                            }
                                        ]
                                    }
                                ]
                            },
                            "confirmationStatus": "NONE",
                            "source": "USER"
                        }
                    }
                }
            }

我该如何做，以便无论答案是正确还是不正确，我都可以访问它？

谢谢！

Answer 1

您还可以执行以下操作：

getSpokenWords: function (handlerInput, slot) {
if (handlerInput.requestEnvelope
    && handlerInput.requestEnvelope.request
    && handlerInput.requestEnvelope.request.intent
    && handlerInput.requestEnvelope.request.intent.slots
    && handlerInput.requestEnvelope.request.intent.slots[slot]
    && handlerInput.requestEnvelope.request.intent.slots[slot].value)
    return handlerInput.requestEnvelope.request.intent.slots[slot].value;
else return undefined;
}

我将在后面编辑此内容并提供其他信息。