What are the best practices for writing impure functions?
Impure functions can be tricky, but here are some best practices: minimize side effects, document behavior, and keep them isolated.
Can you explain what side effects are in this context?
Sure! Side effects occur when a function modifies some state outside its local environment, like changing a global variable or interacting with I/O.
How can I isolate impure functions effectively?
You can isolate impure functions by using dependency injection, which allows you to pass in dependencies rather than hardcoding them.
Are there any tools or libraries that can help with this?
Yes, libraries like Jest for testing and functional programming libraries can help manage and test impure functions effectively.
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