Output of the Question

function mysteryFunction(a) {
let result = 0; // Initialize result to 0
for (let i = 0; i < a.length; i++) { // Loop through each element in array 'a'
result += (a[i] % 2 === 0) ? a[i] : 0;

}
return result;
}

console.log(mysteryFunction([1, 2, 3, 4, 5]));