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javascriptarraysfunctionsumempty-list
Tobe Christopher
Tobe Christopher

Reputation: 1

Running sum until a negative number

Please how can I use the index 0 in a for-loop when testing an empty array for a drumming sum. Also, the single negative value returns zero The sum should stop when a negative number is encountered

  let sum = 0;

  let lenArr = arr.length;

  for (let i = 0; i <= lenArr - 1; i++) {
    if (lenArr === 0) {
      break;
    }

    if (arr[i] > 0) {
      sum = sum + arr[i];
    } else {
      break;
    }
  }

  return sum;
}

let input = [];

runningSum(input);

Upvotes: 0

Views: 1257

Answers (1)

Vishal
Vishal

Reputation: 44

For an empty array the for loop would not be executed and it will return 0. You can remove the if condition to check length of array inside for loop.

Upvotes: 0

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