Dependency Injection in JavaScript: Write Testable Code Easily

• typedi

  7 3,905 9.0 TypeScript

  Simple yet powerful dependency injection tool for JavaScript and TypeScript.

  

For existing projects, or if you don't want the weight of an opinionated framework like Nest, libraries like TypeDI and TSyringe can help.

• tsyringe

  23 4,762 2.9 TypeScript

  Lightweight dependency injection container for JavaScript/TypeScript

  

For existing projects, or if you don't want the weight of an opinionated framework like Nest, libraries like TypeDI and TSyringe can help.

• 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.

  

• Sinon.JS

  28 9,553 8.4 JavaScript

  Test spies, stubs and mocks for JavaScript.

  

Thanks to the magic of runtime reflection and the underlying dynamic nature of JavaScript, our testing framework will likely let us replace those components with hard-coded "mocks" on the fly. Jest, a popular JavaScript testing library, comes with this functionality baked in, and many other libraries provide it as well (such as SinonJS).

• Nest

  312 64,263 9.9 TypeScript

  A progressive Node.js framework for building efficient, scalable, and enterprise-grade server-side applications with TypeScript/JavaScript 🚀

  

Nest.js is a notable framework that uses dependency injection, with a combination of decorators and explicit dependency declaration.

• jest

  473 43,553 9.6 TypeScript

  Delightful JavaScript Testing.

  

Thanks to the magic of runtime reflection and the underlying dynamic nature of JavaScript, our testing framework will likely let us replace those components with hard-coded "mocks" on the fly. Jest, a popular JavaScript testing library, comes with this functionality baked in, and many other libraries provide it as well (such as SinonJS).

• WorkOS

  workos.com sponsored

  The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

  

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