Which debugging approach would be most efficient for identifying the specific problem in these functions?
let results = [];
// This should process items but something's wrong
function processItems(items) {
for (let i = 0; i < items.length; i++) {
let result = processItem(items[i]);
results.push(result);
}
return results;
}
// This function has bug that's affecting the results
function processItem(item) {
// Complex processing
return item.value * 2;
}
Interactive debugging with step-through execution is most efficient: 1) Using the debugger statement or a breakpoint allows stepping through the code line by line, 2) This provides visibility into the actual values at each step of execution, 3) You can inspect the items array, individual items, and see exactly what happens during processing, 4) The step-in command allows diving into the processItem function to see its execution, 5) Variable values can be watched in real-time as they change, 6) This approach quickly identifies which specific item or operation is causing the problem, 7) Interactive debugging shows the exact point where behavior deviates from expectations, 8) This is far more efficient than console logging or checking for errors after execution, especially for logic bugs that don't throw exceptions.