How to create gravity in Javascript

Question

I wanna create map with 2d object. But i need to know how to create gravity, styling objects and any other information.

Answer 1

Could you please explain? What kind of 2d object? What does a map need gravity for?

What is "any other information"?

Are yo referring to a canvas animation?

Answer 2

What kind of object? Do you use a particular library?

It would be helpful if you could link an example code.

Answer 3

The basic idea of gravity in JavaScript is that the object moves down the y axis constantly.
So, create a function that moves the object in this way.

Answer 4

So Lisa . Listen me. I wanna create 2d object(cube). 4 button for controlling cube. And map with gravity. " I wanna create geometry dash".
i know how create object but have a problem with gravity in map. Do you have information about gravity in games?