14 lines
476 B
JavaScript
14 lines
476 B
JavaScript
function sumArrayIndex(arr, index = 0) {
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// Base case: when index is greater than or equal to the length of the array return 0
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if (index >= arr.length) {
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return 0;
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}
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// Recursive case: add the current element to the sum of the rest of the array
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return arr[index] + sumArrayIndex(arr, index + 1);
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}
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// Test cases
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console.log(sumArrayIndex([1, 2, 3, 4, 5])); // => 15
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console.log(sumArrayIndex([10, -2, 33, 47])); // => 88
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console.log(sumArrayIndex([])); // => 0
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