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arguments optional2

Arrogant Alligator answered on October 26, 2022 Popularity 1/10 Helpfulness 1/10

answer arguments optional2

arguments optional2

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function addTogether() {
  const [first, second] = arguments;
  // First argument is not a number
  if (typeof(first) !== "number") {
    return undefined;
  }
  // First argument is a number
  //  and second argument is not defined
  else if (arguments.length === 1) {
    function addSecond(second) {
      // New argument is not a number
      if (typeof(second) !== "number") {
        return undefined;
      }
      // New argument is a number
      else {
        return first + second;
      }
    }
    // Note: returning a *function*
    return addSecond;
  }
  // First argument is a number
  //  and second argument is not a number
  else if (typeof(second) !== "number") {
    return undefined;
  }
  // First argument is a number
  //  and second argument is a number
  else {
    return first + second;
  }
}

Popularity 1/10 Helpfulness 1/10 Language whatever

Source: forum.freecodecamp.org

Tags: arguments whatever

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