What are the differences between Object.keys, Object.values, and Object.entries?

Can you explain the differences between Object.keys, Object.values, and Object.entries in JavaScript?

Sure! Object.keys returns an array of a given object's own property names, while Object.values returns an array of the object's own property values. Object.entries, on the other hand, returns an array of the object's own key-value pairs as arrays.

Can you give me an example of how to use each of these methods?

Of course! For example, if you have an object like {a: 1, b: 2}, using Object.keys would give you ['a', 'b'], Object.values would give you [1, 2], and Object.entries would give you [['a', 1], ['b', 2]].

Are there any differences in performance when using these methods?

Generally, the performance differences are negligible for small objects, but Object.keys and Object.values are typically faster than Object.entries since they return simpler structures.

Thanks! Is there a specific use case where one is preferred over the others?

Yes! If you need just the keys, use Object.keys. If you need values, use Object.values. If you need both keys and values together, Object.entries is the way to go.