How to find out the page ID using the VK API by its address?

Question

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Hello everyone,
What is the least hacky way to find out the ID of a group or user on Vkontakte, knowing the URL of her/his page? The VK API itself only works with IDs.

Answer 1

vk.com/dev/users.get
vk.com/dev/groups.getById

community identifiers or short names

Answer 2

vk.com/dev/utils.resolveScreenName

Defines the type of object (user, community, application) and its identifier by the screen_name short name.