What are the differences between for...in and for...of?
An example of an AI chatbot conversation about the differences between for...in and for...of loops in JavaScript.
Can you explain the differences between for...in and for...of loops in JavaScript?
Sure! The for...in loop iterates over the keys of an object, while the for...of loop iterates over the values of iterable objects like arrays.
Can you give me an example of each?
Of course! For for...in: for (let key in obj) { console.log(key); } and for for...of: for (let value of arr) { console.log(value); }.
Are there any performance differences between them?
Yes, for...of is generally faster for arrays since it directly accesses values, while for...in can be slower due to key lookups.
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