Understanding the dependency inversion principle in TypeScript

• winston

  51 22,045 7.9 JavaScript

  A logger for just about everything.

  

Now to show one of the benefits of applying the dependency inversion principle, let’s assume that our project is a Node.js project, and we want to use a third-party logger library for logging. Winston is one of the popular logger libraries we can choose. Because this post is not a post about logging, I won’t be going into the details of how to use Winston.

• Bunyan

  12 7,132 0.0 JavaScript

  a simple and fast JSON logging module for node.js services

Suppose that after some time you decide that the winston logger library was not the best logger for your project and you want to use Bunyan, what do you do? You just need to create a BunyanLogger class that implements the ILogger interface and it is ready to be used by the UserService.

• SurveyJS

  surveyjs.io sponsored

  Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.

  

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