javascript 不能使用“in”运算符来搜索“_id”
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Cannot use 'in' operator to search for '_id' in
提问by optikfluffel
I'm trying to get an existing user document using mongoose with express but I only get this:
我正在尝试使用带有 express 的 mongoose 获取现有用户文档，但我只得到了这个：
/webroot/api.domain.com/production/node_modules/mongoose/lib/document.js:162
if (obj && '_id' in obj) continue;
^
TypeError: Cannot use 'in' operator to search for '_id' in Account
at model.Document._buildDoc (/webroot/api.domain.com/production/node_modules/mongoose/lib/document.js:162:27)
at model.Document (/webroot/api.domain.com/production/node_modules/mongoose/lib/document.js:67:20)
at model.Model (/webroot/api.domain.com/production/node_modules/mongoose/lib/model.js:33:12)
at new model (/webroot/api.domain.com/production/node_modules/mongoose/lib/model.js:1663:11)
at Object.model (/webroot/api.domain.com/production/node_modules/mongoose/lib/model.js:1662:14)
at Object.findOrCreateOneForTwitter (/webroot/api.domain.com/production/models/account.coffee:60:17)
at module.exports.callback.error (/webroot/api.domain.com/production/endpoints/twitter.coffee:67:34)
at Twitter.get (/webroot/api.domain.com/production/node_modules/ntwitter/lib/twitter.js:85:7)
at passBackControl (/webroot/api.domain.com/production/node_modules/oauth/lib/oauth.js:361:11)
at IncomingMessage.exports.OAuth._performSecureRequest.request.on.callbackCalled (/webroot/api.domain.com/production/node_modules/oauth/lib/oauth.js:380:9)
Is there any known fix for that? Thanks.
有没有已知的修复方法？谢谢。
采纳答案by Ja?ck
This error is not specific to Mongoose; it would show if objis not an object, but a string for instance:
这个错误不是猫鼬特有的；它会显示 ifobj不是一个对象，而是一个字符串，例如：
var obj = 'Account';
'id' in obj;
// TypeError: Cannot use 'in' operator to search for 'id' in Account
Assuming that it's not a Mongoose issue, you'd be looking somewhere here:
假设这不是猫鼬问题，您会在这里寻找某个地方：
at Object.findOrCreateOneForTwitter
(/webroot/api.domain.com/production/models/account.coffee:60:17)
回答by Ali Gangji
Incidentally, you will get the same error from the dojo parser if you try to load an AMD module and you use requireinstead of defineto define the module.
顺便说一句，如果您尝试加载 AMD 模块并使用require而不是define定义模块，则会从 dojo 解析器中得到相同的错误。
