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React Interview Guide
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Traditional debugging methods, such as debuggers with an IDE and browser DevTools, are not effective for debugging custom Hooks. React provides the useDebugValue
Hook to allow developers to debug custom Hooks by assigning custom formatted labels to them. By the end of this section, you will have an idea about debugging custom Hooks.
The useDebugValue
Hook is used to extend the visualization of data related to the internal logic of custom Hooks within React DevTools. This information appears inside the Component Inspector tab of the React DevTools extension.
The current debug information is limited to displaying the information about in-built Hooks used inside of our custom Hook. It is hard for developers to read the information by counting each line in the output and identifying which entry map corresponds to Hooks called inside the code. This difficulty can be rectified by adding additional entries to the...