現在ドットインストールでNode.js入門にて学習中なのですが
「ドキュメントを挿入してみよう」のところで
[vagrant@localhost vagrant]$ node mongo.js
と入れると、下記エラーが出て先に進めない状態です。
/vagrant/node_modules/mongodb/index.js:4 const core = require('mongodb-core'); ^^^^^ SyntaxError: Use of const in strict mode. at Module._compile (module.js:439:25) at Object.Module._extensions..js (module.js:474:10) at Module.load (module.js:356:32) at Function.Module._load (module.js:312:12) at Module.require (module.js:364:17) at require (module.js:380:17) at Object.<anonymous> (/vagrant/mongo.js:1:81) at Module._compile (module.js:456:26) at Object.Module._extensions..js (module.js:474:10) at Module.load (module.js:356:32)
ちなみに下記コマンドでnpmインストールすると
[vagrant@localhost vagrant]$ npm install mongodb
結果の一部にWARNが存在します。これが問題なのでしょうか?
npm http GET https://registry.npmjs.org/mongodb npm http 200 https://registry.npmjs.org/mongodb npm http GET https://registry.npmjs.org/mongodb/-/mongodb-3.2.3.tgz npm http 200 https://registry.npmjs.org/mongodb/-/mongodb-3.2.3.tgz npm WARN engine mongodb@3.2.3: wanted: {"node":">=4"} (current: {"node":"v0.10.48","npm":"1.3.6"}) npm http GET https://registry.npmjs.org/mongodb-core npm http GET https://registry.npmjs.org/safe-buffer npm http 200 https://registry.npmjs.org/safe-buffer npm http GET https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz npm http 200 https://registry.npmjs.org/mongodb-core npm http GET https://registry.npmjs.org/mongodb-core/-/mongodb-core-3.2.3.tgz npm http 200 https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz npm http 200 https://registry.npmjs.org/mongodb-core/-/mongodb-core-3.2.3.tgz npm http GET https://registry.npmjs.org/require_optional npm http GET https://registry.npmjs.org/saslprep npm http GET https://registry.npmjs.org/bson npm http 200 https://registry.npmjs.org/require_optional npm http GET https://registry.npmjs.org/require_optional/-/require_optional-1.0.1.tgz npm http 200 https://registry.npmjs.org/saslprep npm http GET https://registry.npmjs.org/saslprep/-/saslprep-1.0.2.tgz npm http 200 https://registry.npmjs.org/bson npm http GET https://registry.npmjs.org/bson/-/bson-1.1.1.tgz npm http 200 https://registry.npmjs.org/saslprep/-/saslprep-1.0.2.tgz npm http 200 https://registry.npmjs.org/require_optional/-/require_optional-1.0.1.tgz npm http 200 https://registry.npmjs.org/bson/-/bson-1.1.1.tgz npm WARN engine saslprep@1.0.2: wanted: {"node":">=6"} (current: {"node":"v0.10.48","npm":"1.3.6"}) npm http GET https://registry.npmjs.org/semver npm http GET https://registry.npmjs.org/resolve-from npm http GET https://registry.npmjs.org/sparse-bitfield npm http 200 https://registry.npmjs.org/resolve-from npm http GET https://registry.npmjs.org/resolve-from/-/resolve-from-2.0.0.tgz npm http 200 https://registry.npmjs.org/semver npm http GET https://registry.npmjs.org/semver/-/semver-5.7.0.tgz npm http 200 https://registry.npmjs.org/sparse-bitfield npm http GET https://registry.npmjs.org/sparse-bitfield/-/sparse-bitfield-3.0.3.tgz npm http 200 https://registry.npmjs.org/resolve-from/-/resolve-from-2.0.0.tgz npm http 200 https://registry.npmjs.org/semver/-/semver-5.7.0.tgz npm http 200 https://registry.npmjs.org/sparse-bitfield/-/sparse-bitfield-3.0.3.tgz npm http GET https://registry.npmjs.org/memory-pager npm http 200 https://registry.npmjs.org/memory-pager npm http GET https://registry.npmjs.org/memory-pager/-/memory-pager-1.5.0.tgz npm http 200 https://registry.npmjs.org/memory-pager/-/memory-pager-1.5.0.tgz
念の為mongo.jsの中身もアップしておきます。
javascript
1var MongoClient = require('mongodb').MongoClient, 2 settings = require('./settings'); 3 4MongoClient.connect("mongodb://localhost/"+settings.db, function(err, db){ 5 if(err){ return cosole.dir(err); } 6 console.log("connected to db"); 7});
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こちらの条件を満たす必要があります。