var MongoClient = require('mongodb').MongoClient;
var url = "mongodb://:27017/mydb";
MongoClient.connect(url, function(err, db) {
if (err) throw err;
//Exclude "address" field in the result:
db.collection("customers").find({}, { projection: { address: 0 } }).toArray(function(err, result) {
if (err) throw err;
console.log(result);
db.close();
});
});
[
{ _id: 594a51721daccb087032309e, name: '约翰' },
{ _id: 594a51721daccb087032309f, name: '彼得' },
{ _id: 594a51721daccb08703230a0, name: '艾米' },
{ _id: 594a51721daccb08703230a1, name: '汉娜' },
{ _id: 594a51721daccb08703230a2, name: '迈克尔' },
{ _id: 594a51721daccb08703230a3, name: '桑迪' },
{ _id: 594a51721daccb08703230a4, name: '贝蒂' },
{ _id: 594a51721daccb08703230a5, name: '理查德' },
{ _id: 594a51721daccb08703230a6, name: '苏珊' },
{ _id: 594a51721daccb08703230a7, name: '维姬' },
{ _id: 594a51721daccb08703230a8, name: '本' },
{ _id: 594a51721daccb08703230a9, name: '威廉' },
{ _id: 594a51721daccb08703230aa, name: '查克' },
{ _id: 594a51721daccb08703230ab, name: '维奥拉' }
]
{ _id: 594a51721daccb087032309e, name: '约翰' },
{ _id: 594a51721daccb087032309f, name: '彼得' },
{ _id: 594a51721daccb08703230a0, name: '艾米' },
{ _id: 594a51721daccb08703230a1, name: '汉娜' },
{ _id: 594a51721daccb08703230a2, name: '迈克尔' },
{ _id: 594a51721daccb08703230a3, name: '桑迪' },
{ _id: 594a51721daccb08703230a4, name: '贝蒂' },
{ _id: 594a51721daccb08703230a5, name: '理查德' },
{ _id: 594a51721daccb08703230a6, name: '苏珊' },
{ _id: 594a51721daccb08703230a7, name: '维姬' },
{ _id: 594a51721daccb08703230a8, name: '本' },
{ _id: 594a51721daccb08703230a9, name: '威廉' },
{ _id: 594a51721daccb08703230aa, name: '查克' },
{ _id: 594a51721daccb08703230ab, name: '维奥拉' }
]