How to implement a collision of a hero with game objects, like a Mario game?

Question

JavaScript

Hello. I'm writing a platformer based on the Mario game type. How to correctly implement collision with objects?

Answer 1

An example in C ++ but the essence is the same

Answer 2

https://habrahabr.ru/post/127991/

Answer 3

There is a library called jquery collision called google you can find it.