What are some common errors when using for...of loops in JavaScript?
An example of an AI chatbot conversation about common errors with for...of loops in JavaScript.
What are some common errors when using for...of loops in JavaScript?
Some common errors include trying to use for...of with non-iterable objects, like plain objects.
Can you give me an example of using for...of incorrectly?
Sure! If you try to use for...of on an object like this: for (let key of {a: 1, b: 2}), it will throw an error.
What should I use instead for objects?
You should use for...in to iterate over the keys of an object. For example: for (let key in obj).
Are there any performance issues with for...of?
Generally, for...of is slower than forEach or traditional for loops, especially with large datasets.
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