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Discussion on: useState for one-time initializations

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Dominik D Author

While possible, there is no lazy initializer for useRef. So in this case, the resource constructor will be called on every render and the result will be discarded. This is certainly possible for some cases, but it’s not the same :)

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Sergey Khomushin • Edited

I haven't tested it myself, but I have my doubts. From sources:

useRef returns a mutable ref object whose .current property is initialized to the passed argument (initialValue). The returned object will persist for the full lifetime of the component.

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Sergey Khomushin

Tested, you are right. It looks like they talk about the object itself, but do not guarantee that it will be persisted in .current. Well, good to know.