What is the difference between shallow and deep merge?
A shallow merge combines objects at the first level, while a deep merge combines nested objects as well.
Can you give me an example of each?
Sure! In a shallow merge, if you merge {a: 1, b: {c: 2}} with {b: {d: 3}}, the result is {a: 1, b: {d: 3}}. In a deep merge, it would combine nested properties, resulting in {a: 1, b: {c: 2, d: 3}}.
When would I use a deep merge instead of a shallow merge?
You'd use a deep merge when you need to combine nested objects without losing any data from either object.
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