react/scripts/error-codes
Andrew Clark bd0a963445
Throw when act is used in production (#21686)
Upgrades the deprecation warning to a runtime error.

I did it this way instead of removing the export so the type is the same
in both builds. It will get dead code eliminated regardless.
2021-06-16 16:29:51 -04:00
..
__tests__ Fix spelling errors and typos (#19138) 2020-06-15 19:59:44 -04:00
codes.json Throw when act is used in production (#21686) 2021-06-16 16:29:51 -04:00
extract-errors.js Use babel parser rather than Babylon in extract errors (#17988) 2020-02-06 12:46:32 +00:00
invertObject.js Drop the year from Facebook copyright headers and the LICENSE file. (#13593) 2018-09-07 15:11:23 -07:00
README.md Fix link on error-codes/README.md (#16595) 2019-08-28 15:49:45 +01:00
transform-error-messages.js Pass prod error messages directly to constructor (#17063) 2019-10-11 09:10:40 -07:00
Types.js Update Flow to 0.84 (#17805) 2020-01-09 14:50:44 +00:00

The error code system substitutes React's error messages with error IDs to provide a better debugging support in production. Check out the blog post here.

  • codes.json contains the mapping from IDs to error messages. This file is generated by the Gulp plugin and is used by both the Babel plugin and the error decoder page in our documentation. This file is append-only, which means an existing code in the file will never be changed/removed.
  • extract-errors.js is an node script that traverses our codebase and updates codes.json. You can test it by running yarn extract-errors.
  • transform-error-messages is a Babel pass that rewrites error messages to IDs for a production (minified) build.