What is the potential issue with using a for...in loop to iterate over arrays?
- It throws an error.
- It iterates only over values.
- It may include inherited properties.
- It can't be used with arrays.
Using a for...in loop to iterate over arrays can lead to a potential issue because it not only iterates over the array's own properties but also includes properties that may be inherited from the prototype chain. This can result in unexpected behavior if you're not careful. To avoid this issue, it's recommended to use for...of loops when iterating over arrays or other iterable objects, as they are designed specifically for this purpose and only iterate over the values of the iterable.
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