All files / problems/sumRecursion index.ts

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100% Branches 3/3
100% Functions 1/1
100% Lines 9/9

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const sum = (numbers: number[]): number => {
  // base case
  if (!numbers.length) return 0;
 
  // recursion case
  return numbers[0] + sum(numbers.slice(1));
};
 
export default sum;