Question

我不仅到处看，而且找不到答案。我找到了这个mongoose-model-ES6。我正在尝试使用Symbol data type.，所以上一个链接无济于事。

我的课看起来像这样

import mongoose from 'mongoose';

const _user_key = Symbol('key');
const _user_name = Symbol('name');
const _user_email = Symbol('email');

class User extends mongoose.Schema {
    constructor(key,name,email) {
        const user = super({
            this[_user_key] = key;
            this[_user_name] = name;
            this[_user_email] = email;              
        })        
    }
get key () {return this[_user_key]};
get name (){return this[_user_name]};
get email () {return this[_user_email]};    
};

export default mongoose.model('User', new User);

我从航站楼跑

            this[_user_key] = key;
                ^

SyntaxError: Unexpected token '['
    at Loader.moduleStrategy (internal/modules/esm/translators.js:122:18)
    at async link (internal/modules/esm/module_job.js:42:21)

如果我尝试Bergi的建议

class User extends mongoose.Schema {
    constructor(key,name,email) {
        const user = super(
            this[_user_key] = key;
            this[_user_name] = name;
            this[_user_email] = email;              
        )        
    }

我出错了

            this[_user_key] = key;
                              ^^^

SyntaxError: missing ) after argument list

Answer 1

该错误看上去与符号无关，但与实际语法错误

你的意思是

super({
  [_user_key]   : key,
  [_user_name]  : name,
  [_user_email] : email,             
})

？

如何在猫鼬模型中使用符号？

1 个答案: