Use console.time() for Performance Measurement

Problem

Measuring code execution time requires manual Date.now() calculations.

Solution

Use console.time() and console.timeEnd() to measure execution time easily.

Benefit

Simple, accurate performance measurement without manual timestamp math.

Code Example

console.time('Array processing');

const result = largeArray.map(item => {
    // Complex processing
    return processItem(item);
});

console.timeEnd('Array processing');
// Output: Array processing: 234.56ms