What are the performance issues in array iteration?

What are the common performance issues when iterating over arrays?

Common issues include time complexity, memory usage, and inefficient algorithms that can slow down iteration.

How can I optimize array iteration in JavaScript?

You can use methods like forEach, map, or reduce, but be cautious of their performance in large datasets.

Are there specific scenarios where one method is better than another?

Yes, for example, for large arrays, a traditional for loop may be faster than forEach due to less overhead.

What tools can I use to measure the performance of my array operations?

You can use browser developer tools, Node.js performance hooks, or libraries like Benchmark.js to measure performance.