Question

当我运行此代码时，我在一个特定行（注释）上得到一个TypeError：（我只包含了这个特定的代码块，这里看到的块和计数等变量都在别处定义。）

//if semantic meaning found
if (msg.tmp.nlu.results.semantic_roles.length > 0) {

msg.tmp.nlu.results.semantic_roles.forEach( function (arrayItem){

    chunk[count].semantic.push( 
        {
        subject: arrayItem.subject.text,
        object: arrayItem.object.text, // TypeError: Cannot read property 'text' of undefined"
        action: arrayItem.action.text,
        }   
    );
    score++;

});

}

这是我运行forEach的msg.tmp.nlu.results.semantic_roles数组：

[{
    "subject": {
        "text": "I"
    },
    "sentence": "I worked with the team to deploy a new marketing software application.",
    "object": {
        "text": "to deploy a new marketing software application",
        "keywords": [{
            "text": "new marketing software"
        }, {
            "text": "application"
        }]
    },
    "action": {
        "verb": {
            "text": "work",
            "tense": "past"
        },
        "text": "worked",
        "normalized": "work"
    }
}, {
    "subject": {
        "text": "I"
    },
    "sentence": "I worked with the team to deploy a new marketing software application.",
    "object": {
        "text": "a new marketing software application",
        "keywords": [{
            "text": "new marketing software"
        }, {
            "text": "application"
        }]
    },
    "action": {
        "verb": {
            "text": "deploy",
            "tense": "future"
        },
        "text": "to deploy",
        "normalized": "to deploy"
    }
}]

这与使用名称'object'的arrayItem.object.text有关，但不知道如何解决它。有人可以帮忙吗？

Answer 1

我无法重现您的问题，但我已尝试根据您的问题重新创建代码段。对我而言，它应该正常工作，没有TypeError: Cannot read property 'text' of undefined"错误。希望您可以使用此工作代码来查找和解决您的问题。

＆＃13;

// simulates chunk[count].semantic array
const semantic = [];

// simulates semantic_roles array
const semantic_roles = [{
    "subject": {
        "text": "I"
    },
    "sentence": "I worked with the team to deploy a new marketing software application.",
    "object": {
        "text": "to deploy a new marketing software application",
        "keywords": [{
            "text": "new marketing software"
        }, {
            "text": "application"
        }]
    },
    "action": {
        "verb": {
            "text": "work",
            "tense": "past"
        },
        "text": "worked",
        "normalized": "work"
    }
}, {
    "subject": {
        "text": "I"
    },
    "sentence": "I worked with the team to deploy a new marketing software application.",
    "object": {
        "text": "a new marketing software application",
        "keywords": [{
            "text": "new marketing software"
        }, {
            "text": "application"
        }]
    },
    "action": {
        "verb": {
            "text": "deploy",
            "tense": "future"
        },
        "text": "to deploy",
        "normalized": "to deploy"
    }
}];

// Slightly changed forEach loop
semantic_roles.forEach( function (arrayItem){

    // Push items to the semantic array
    semantic.push( 
        {
        subject: arrayItem.subject.text,
        object: arrayItem.object.text,
        action: arrayItem.action.text,
        }   
    );

  // Log in console arrayItem.object.text for each item
  console.log('Text:', arrayItem.object.text);

});

//Log in console semantic_roles array
console.log('semantic_roles array:', semantic_roles); // 2 items

//Log in console semantic array
console.log('semantic array:', semantic); // 2 items

＆＃13;

Typeerror将javascript对象键推送到新对象

1 个答案: