How move something along a path?

Hi

I'm new to Unity. I have experience with SpriteKit.
In SpriteKit, if I wanted to move something, I could use something like:

let action = SKAction.moveTo( some point, duration: 4 seconds)
myGameObject.runAction( action )​

Then myGameObject would just move to the point and it would take 4 seconds.
There's no need for coding in Update. Is there such a thing in Unity? Or I should always use update to move something.

Also I could just create a CGPath ( an array of points, or a bezierPath) and use something like:

let action = SKAction.moveAlongPath( some path, duration: 4 seconds)
myGameObject.runAction( action )​

And it would move along the path

Is there a way to do this?

 

What I want to do is throw a grenade in a 2D game and I want it to follow the same path.
Something like throwing an arrow in tower defense game (like Kingdom Rush).
I haven't seen a tutorial on throwing thing that would be the way I want it.

 

IMO the best tweening package for Unity is DOTween. There's a free version on the asset store. It has a path following tween.

 

Thank you
I had no idea it's called Tweening
Haven't tried it yet but based on the description it's exactly what I wanted.

 

Here's a link to the documentation for syntax and methods:
http://dotween.demigiant.com/documentation.php