Node.js v16 to v18

!

This article covers a part of the migration from Node.js v16 to v18. The userland migrations team is working on more codemods to help you with the migration.

This page provides a list of codemods to help you migrate your code from Node.js v16 to v18.

err-invalid-callback

In Node.js v18, the DEP0159 deprecation was introduced, which deprecated the ERR_INVALID_CALLBACK error code in favor of ERR_INVALID_ARG_TYPE. This codemod will help you replace any references to the old error code with the new one.

The source code for this codemod can be found in the err-invalid-callback directory.

You can find this codemod in the Codemod Registry.

npx codemod run @nodejs/err-invalid-callback

Example:

  try {
    fs.readFile("file.txt", "invalid-callback");
  } catch (err) {
-   if (err.code === "ERR_INVALID_CALLBACK") {
+   if (err.code === "ERR_INVALID_ARG_TYPE") {
      console.error("Invalid callback provided");
    }
  }

Also handles deduplication when both codes were already checked:

  const isCallbackError =
-   err.code === "ERR_INVALID_CALLBACK" ||
-   err.code === "ERR_INVALID_ARG_TYPE";
+   err.code === "ERR_INVALID_ARG_TYPE";