Skip to content

doc: process.nextTick() example question #12280

@vsemozhetbyt

Description

@vsemozhetbyt

This section says:

// WARNING!  DO NOT USE!  BAD UNSAFE HAZARD!
function maybeSync(arg, cb) {
  if (arg) {
    cb();
    return;
  }

  fs.stat('file', cb);
}

This API is hazardous because in the following case:

maybeSync(true, () => {
  foo();
});
bar();

It is not clear whether foo() or bar() will be called first.

For me, if arg is true, the order is unambiguously maybeSync() -> cb() -> foo() -> bar(), i.e. no async at all. What do I miss?

Metadata

Metadata

Assignees

No one assigned

    Labels

    processIssues and PRs related to the process subsystem.questionIssues that look for answers.

    Type

    No type

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions