に「マーク」がpropertを設定することはできません、エラーは次のとおりです。はそれは間違っていると思われるので、これは奇妙なエラーで未定義
TypeError: Cannot set property 'mark' of undefined
at /home/ubuntu/workspace/tests/app.js:194:36
at Layer.handle [as handle_request](/home/ubuntu/workspace/tests/node_modules/express/lib/router/layer.js:95:5)
at next (/home/ubuntu/workspace/tests/node_modules/express/lib/router/route.js:131:13)
at Route.dispatch (/home/ubuntu/workspace/tests/node_modules/express/lib/router/route.js:112:3)
at Layer.handle [as handle_request] (/home/ubuntu/workspace/tests/node_modules/express/lib/router/layer.js:95:5)
at /home/ubuntu/workspace/tests/node_modules/express/lib/router/index.js:277:22
at Function.process_params (/home/ubuntu/workspace/tests/node_modules/express/lib/router/index.js:330:12)
at next (/home/ubuntu/workspace/tests/node_modules/express/lib/router/index.js:271:10)
at SessionStrategy.module.exports.strategy.pass (/home/ubuntu/workspace/tests/node_modules/passport/lib/middleware/authenticate.js:325:9)
at SessionStrategy.authenticate (/home/ubuntu/workspace/tests/node_modules/passport/lib/strategies/session.js:71:10)
at attempt (/home/ubuntu/workspace/tests/node_modules/passport/lib/middleware/authenticate.js:348:16)
at authenticate (/home/ubuntu/workspace/tests/node_modules/passport/lib/middleware/authenticate.js:349:7)
at Layer.handle [as handle_request] (/home/ubuntu/workspace/tests/node_modules/express/lib/router/layer.js:95:5)
at trim_prefix (/home/ubuntu/workspace/tests/node_modules/express/lib/router/index.js:312:13)
at /home/ubuntu/workspace/tests/node_modules/express/lib/router/index.js:280:7
at Function.process_params (/home/ubuntu/workspace/tests/node_modules/express/lib/router/index.js:330:12)
このエラーを作成するコードは次のとおりです。
for(var i = 0;i < req.body.numOfMethods;i++)
{
for(var x = 0;x< numOfParts[i];x++)
{
methodsArray[i][x].mark=parts[i][x].mark;
methodsArray[i][x].content=parts[i][x].content;
}
}
私はこのテキスト
console.log("numOfParts[i] = "+numOfParts[0]);
console.log("numOfParts[i] = "+numOfParts[1]);
console.log("numOfMethods = "+req.body.numOfMethods);
for(var i = 0;i < req.body.numOfMethods;i++)
{
for(var x = 0;x< numOfParts[i];x++)
{
console.log("i = "+i);
console.log("x = "+x);
console.log("parts[i][x].mark = "+parts[i][x].mark);
console.log("parts[i][x].content = "+parts[i][x].content);
}
}
の下でコードを実行すると
はまだそれが出て印刷します。
numOfParts[i] = 3
numOfParts[i] = 2
numOfMethods = 2
i = 0
x = 0
parts[i][x].mark = 2
parts[i][x].content = test
i = 0
x = 1
parts[i][x].mark = 2
parts[i][x].content = test
i = 0
x = 2
parts[i][x].mark = 2
parts[i][x].content = test
i = 1
x = 0
parts[i][x].mark = 3
parts[i][x].content = test
i = 1
x = 1
parts[i][x].mark = 3
parts[i][x].content = test
これは、methodsArray[i][x].mark
が未定義の値に設定されていないことを示しています。最終的にここで私はこのエラーを修正するために何をすべきかについてかなり迷っています。私は疑問に配列を定義するのはここ
は
var methodsArray=[[{mark:Number,content:String}]];
var numOfParts=[req.body.m1parts,req.body.m2parts,req.body.m3parts,req.body.m4parts];
var parts=[
[
{mark:req.body.m1p1mark,content:req.body.m1p1content},{mark:req.body.m1p2mark,content:req.body.m1p2content},
{mark:req.body.m1p3mark,content:req.body.m1p3content},{mark:req.body.m1p4mark,content:req.body.m1p4content},
{mark:req.body.m1p5mark,content:req.body.m1p5content},{mark:req.body.m1p6mark,content:req.body.m1p6content},
{mark:req.body.m1p7mark,content:req.body.m1p7content},{mark:req.body.m1p8mark,content:req.body.m1p8content},
{mark:req.body.m1p9mark,content:req.body.m1p9content},{mark:req.body.m1p10mark,content:req.body.m1p10content}
],
[
{mark:req.body.m2p1mark,content:req.body.m2p1content},{mark:req.body.m2p2mark,content:req.body.m2p2content},
{mark:req.body.m2p3mark,content:req.body.m2p3content},{mark:req.body.m2p4mark,content:req.body.m2p4content},
{mark:req.body.m2p5mark,content:req.body.m2p5content},{mark:req.body.m2p6mark,content:req.body.m2p6content},
{mark:req.body.m2p7mark,content:req.body.m2p7content},{mark:req.body.m2p8mark,content:req.body.m2p8content},
{mark:req.body.m2p9mark,content:req.body.m2p9content},{mark:req.body.m2p10mark,content:req.body.m2p10content}
],
[
{mark:req.body.m3p1mark,content:req.body.m3p1content},{mark:req.body.m3p2mark,content:req.body.m3p2content},
{mark:req.body.m3p3mark,content:req.body.m3p3content},{mark:req.body.m3p4mark,content:req.body.m3p4content},
{mark:req.body.m3p5mark,content:req.body.m3p5content},{mark:req.body.m3p6mark,content:req.body.m3p6content},
{mark:req.body.m3p7mark,content:req.body.m3p7content},{mark:req.body.m3p8mark,content:req.body.m3p8content},
{mark:req.body.m3p9mark,content:req.body.m3p9content},{mark:req.body.m3p10mark,content:req.body.m3p10content}
],
[
{mark:req.body.m4p1mark,content:req.body.m4p1content},{mark:req.body.m4p2mark,content:req.body.m4p2content},
{mark:req.body.m4p3mark,content:req.body.m4p3content},{mark:req.body.m4p4mark,content:req.body.m4p4content},
{mark:req.body.m4p5mark,content:req.body.m4p5content},{mark:req.body.m4p6mark,content:req.body.m4p6content},
{mark:req.body.m4p7mark,content:req.body.m4p7content},{mark:req.body.m4p8mark,content:req.body.m4p8content},
{mark:req.body.m4p9mark,content:req.body.m4p9content},{mark:req.body.m4p10mark,content:req.body.m4p10content}
]
];
この問題を解決するには、 methodsArray [i] [x] .mark.push(parts [i] [x] .mark);を実行する必要があります。methodsArray [i] [x] .content.push(parts [i] [x] .content); そうですか? –
いいえ、あなたの問題は 'methodsArray [i]'または 'methodsArray [i] [x]'は未定義です。未定義にプロパティを設定することはできません。 undefinedには 'push 'もありません。例えば。 'methodsArray [1] === undefined'または' methodsArray [0] [1] === undefined'です。あなたはやっている。 'methodsArray [1] [0] .mark'これは' undefined [0] .mark'に変換されます。 – ASDFGerte
さて、私はそれをどう定義するのですか、それとも別の方法でやるのですか? –