「Node.js」deleteOne関数でMongodbの1件データを削除する

2020年11月23日

構文
dbo.collection(“xxx").deleteOne(条件, function(err, obj)
サンプルコード

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var MongoClient = require('mongodb').MongoClient;
var url = "mongodb://localhost:27017/";
MongoClient.connect(url, { useNewUrlParser: true }, function(err, db) {
if (err) throw err;
var dbo = db.db("arkgamedb");
// 查询条件
var whereStr = {"name":'arkgame'};
dbo.collection("testtbl").deleteOne(whereStr, function(err, obj) {
if (err) throw err;
console.log("document deleted");
db.close();
});
});
var MongoClient = require('mongodb').MongoClient; var url = "mongodb://localhost:27017/"; MongoClient.connect(url, { useNewUrlParser: true }, function(err, db) { if (err) throw err; var dbo = db.db("arkgamedb"); // 查询条件 var whereStr = {"name":'arkgame'}; dbo.collection("testtbl").deleteOne(whereStr, function(err, obj) { if (err) throw err; console.log("document deleted"); db.close(); }); });
var MongoClient = require('mongodb').MongoClient;
var url = "mongodb://localhost:27017/";
 
MongoClient.connect(url, { useNewUrlParser: true }, function(err, db) {
    if (err) throw err;
    var dbo = db.db("arkgamedb");
   // 查询条件
    var whereStr = {"name":'arkgame'};  
    dbo.collection("testtbl").deleteOne(whereStr, function(err, obj) {
        if (err) throw err;
        console.log("document deleted");
        db.close();
    });
});

確認
> db.testtbl.find()

Node.js

Posted by arkgame