シャドーイング練習: NestJS in 100 Seconds - YouTubeで英語スピーキングを学ぶ
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Nest.js is a Node.js framework for building scalable server-side applications with TypeScript.
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Nest.js is a Node.js framework for building scalable server-side applications with TypeScript.
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It provides a suite of tools that leverage either Fastify or Express to facilitate rapid development and predictable readable code.
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It supports REST and GraphQL APIs out of the box, or you might use it to build a full-stack application using the model-view-controller pattern, similar to frameworks like Laravel or Ruby on Rails.
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And it contains a ton of built-in modules to work with databases, handle security, implement streaming, and anything else you can imagine doing in a server-side application.
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Nest has its own very powerful command line tool, and you can scaffold out a new project with the nest new command.
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That provides a code base pre-configured with jest for testing, and set up with TypeScript to help us write more readable and reliable code.
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In the source directory, you'll notice a controller, which is a fundamental building block of the framework.
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It's responsible for handling incoming HTTP requests and returning responses back to the To implement a controller, simply add the controller decorator to a class.
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Then inside the class, you can implement methods and decorate them with HTTP verbs like git, post, patch, put, etc.
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By default, this will create an HTTP endpoint on the root URL, but you can pass a string to the decorator to change the route or implement dynamic route parameters.
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In addition, Nest provides other decorators to control things like the status code and headers.
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Then in the method itself, parameter decorators can be used to access the request parameters or body.
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And finally, the return value from the method is the response body that gets sent back down to the client.
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What's awesome about nest is that you can use the CLI to automatically generate more controllers to keep your code organized as it grows in complexity.
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But there's more to nest than just controllers.
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A provider is a class that contains shared logic throughout the entire application and can be injected as a dependency where needed.
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Any class with the injectable decorator can be injected in the constructor of another class.
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For example, a provider can be implemented as a guard to handle role-based user authentication.
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Or it might be implemented as a pipe to efficiently validate and transform values in a controller.
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And lastly, we have the module decorator, which allows code to be organized into smaller chunks where it can be lazy loaded to run faster in serverless environments.
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This has been NestJS in 100 seconds.
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If you want to see more short videos like this, make sure to hit the like button and subscribe.
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Thanks for watching, and I will see you in the next one.
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「NestJS in 100 Seconds」を使って、シャドーイングで英語を練習しましょう。
毎日15〜30分の練習で、IELTSスピーキングへの自信と実践的な英会話力が身につきます。
シャドーイングとは？英語上達に効果的な理由
シャドーイング（Shadowing）は、もともとプロの通訳者養成プログラムで開発された言語学習法で、多言語習得者として知られるDr. Alexander Arguelles によって広く普及されました。方法はシンプルですが非常に効果的：ネイティブスピーカーの英語を聞きながら、1〜2秒の遅延で声に出してすぐに繰り返す——まるで「影（shadow）」のように話者を追いかけます。文法ドリルや受動的なリスニングと異なり、シャドーイングは脳と口の筋肉が同時にリアルタイムで英語を処理・再現することを強制します。研究により、発音精度、抑揚、リズム、連音、リスニング力、そして会話の流暢さが大幅に向上することが確認されています。IELTSスピーキング対策や自然な英語コミュニケーションを目指す方に特におすすめです。