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TS1362

A 'default' clause cannot appear more than once in a 'switch' statement.

Broken Code ❌

function getStatus(code: number): string {
  switch (code) {
    case 200:
      return 'OK';
    default:
      return 'Error';
    default:
      return 'Unknown';
  }
}

Fixed Code ✔️

function getStatus(code: number): string {
  switch (code) {
    case 200:
      return 'OK';
    default:
      return 'Error';
  }
}

A switch statement can only have one default clause. Remove duplicate default cases.