TS2372

error TS2372: Parameter ‘score‘ cannot reference itself.

Broken Code ❌

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function printScore(score: number = score): void {
  console.log(score);
}

Fixed Code ✔️

If you want to use a default value for a parameter, then you have to set it to a fixed value instead of referencing the parameter to itself:

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function printScore(score: number = 0): void {
  console.log(score);
}