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Avoiding Global State - Real Example with Passport.js

28 Jul 2020 - JavaScript, TypeScript, Jest

Here is a quick example about issues created by global states in software.

Overriding Singletons from TSyringe within Jest Tests

18 Jul 2020 - JavaScript, TypeScript, TSyringe, Jest

You might encounter some issues while trying to override singletons from TSyringe in Jest tests. Here is a quick post to help you to fix them.

Dependency Hell with Yarn & Jest

21 Jun 2020 - JavaScript, TypeScript, Yarn, Jest

Let’s discuss dependency hell when mocking Node module with Jest while using Yarn as the package manager.