Restrict viewport to the world borders when follows object

[CurlyBraceTT]

When using follow method - viewport shows areas beyond world box. I restrict viewport position by next lines inside the update method of the follow plugin:

this.parent.x = Math.min(this.parent.x, 0);
this.parent.y = Math.min(this.parent.y, 0);
this.parent.x = Math.max(this.parent.x, this.parent.screenWidth - this.parent.worldWidth);
this.parent.y = Math.max(this.parent.y, this.parent.screenHeight - this.parent.worldHeight);

Is there a better way to do this and maybe this should be done on a higher level?

[davidfig]

Did you try viewport.clamp()? That keeps the camera from moving beyond the borders and works with follow.

[CurlyBraceTT]

clamp solved it, thanks.