doc - Document MODULE_NOT_FOUND error code

[DullReferenceException]

• Version: All
• Platform: N/A
• Subsystem: N/A

The error code MODULE_NOT_FOUND doesn't seem to be documented (see https://nodejs.org/dist/latest-v8.x/docs/api/errors.html#nodejs-error-codes). Having it officially supported/documented will help us safely implement "tryRequire" operations for optional files.

(By the way, I'm not finding where the API documents live. Maybe the docs for how to update docs could be surfaced better so this could have taken the form of a PR.)

[addaleax]

(By the way, I'm not finding where the API documents live. Maybe the docs for how to update docs could be surfaced better so this could have taken the form of a PR.)

They’re in doc/api, and some more generic information is in https://github.com/nodejs/node/blob/master/doc/guides/contributing/pull-requests.md#step-3-code – if that’s helpful, would you be interested in working on a PR?

[DullReferenceException]

Ah, thought it'd be in the nodejs.org repo. Maybe that repo could add a note for those that are lost. I'll create a PR.

[richardlau]

Also as of #21703 there is now an Edit on GitHub link on each page, e.g. https://nodejs.org/dist/latest-v10.x/docs/api/errors.html (not on v8.x yet until that PR is backported).

[DullReferenceException]

I noticed that MODULE_NOT_FOUND doesn't follow the ERR_* naming conventions like all the other documented codes, but changing the code could be a breaking change for many.