3 patterns that make TypeScript hard:


1. Inconsistent data structures

2. Overloaded functions

3. Multiple return types from the same function

Here's how I handle these... 🧵 👇

#typescript

Problem 1: Inconsistent data structures (such as dynamic object properties and mixed arrays)

Solution: Refactor to eliminate dynamic object properties and mixed arrays. If not possible, create a centralized facade so the dynamic data structure is “normalized” in one spot.

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Problem 2: Overloaded functions

Solution: Implement multiple functions instead of a single overloaded function. Or, use a generic if there are too many options to practically create separate functions.

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Problem 3: Multiple return types from the same function

Solution: Implement a single, consistent return type that conveys all potential responses. Or create separate functions with distinct return types.

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