How can I improve the performance of merging arrays in JavaScript?

How can I improve the performance of merging arrays in JavaScript?

You can improve performance by using methods like concat, the spread operator, or Array.prototype.push for large arrays.

What about using reduce? Is it efficient?

Using reduce can be less efficient for large arrays due to its recursive nature, but it can be more readable.

Are there any libraries that can help with array merging?

Yes, libraries like Lodash provide optimized functions for merging arrays, which can be more efficient than native methods.

What should I consider when choosing a method for merging?

Consider factors like array size, readability, and whether you need to maintain unique values or order.