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What does `standardUserDefaults` on` NSUserDefaults` do?

I have a question related to NSUserDefaults standardUserDefaults. What exactly does the method standardUserDefaultsdo? Is this object initialization?

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Yes or no. NSUserDefaultsis a singleton, so there is always only one instance of a class, and standardUserDefaults- a method for obtaining this single instance.

If the instance NSUserDefaultsdoes not exist yet, it will be alloc'ed and init' ed and then returned, otherwise this already present instance is returned.

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Source: https://habr.com/ru/post/1763566/

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