eslint/no-unused-labels Correctness

What it does

Disallow unused labels

Why is this bad?

Labels that are declared and not used anywhere in the code are most likely an error due to incomplete refactoring.

Examples

Examples of incorrect code for this rule:

OUTER_LOOP: for (const student of students) {
  if (checkScores(student.scores)) {
    continue;
  }
  doSomething(student);
}

Examples of correct code for this rule:

for (const student of students) {
  if (checkScores(student.scores)) {
    continue;
  }
  doSomething(student);
}

How to use

To enable this rule using the config file or in the CLI, you can use:

Config (.oxlintrc.json)

{
  "rules": {
    "no-unused-labels": "error"
  }
}

CLI

oxlint --deny no-unused-labels

References

• Rule Source