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Error boundaries, why they exist, and what they cannot catch

Error boundaries prevent a rendering error in one subtree from crashing the entire visible application tree.

React Medium Theory

Error boundaries, why they exist, and what they cannot catch

Error boundaries prevent a rendering error in one subtree from crashing the entire visible application tree.

  • They catch errors during rendering, lifecycle, and constructors below them
  • They do not catch every async error
  • They are implemented with class components
#errors #react #rendering

Error boundaries, why they exist, and what they cannot catch