Component Lifecycle: Updating

Forgetting to include a condition when calling setState()
A common mistake when using componentDidUpdate() is forgetting to include a condition when calling setState(). Without a condition (like comparing current props to previous props), setting state in componentDidUpdate() will trigger another update cycle, leading to an infinite loop and eventually a stack overflow error.
Returning a value from the method
Not including the prevProps parameter
Calling it manually from other methods