How round player position?

[BylemTu 2]

mp.events.addCommand('gp', (player) => {    
player.outputChatBox("Pozycja: " + player.position);
});

My English is not very well, sorry.
Today I started JS learning with RageMP. I made some easy scripts similar to examples. One of my first problems are this in top of the post. How can I round player.position?
It's problem for me cause player.position have 3 values - X, Y and Z.

In lua (MTA) it was easier for me. 
 

local X, Y, Z = getPlayerPosition
print(X, Y, Z)

 

[BylemTu 2]

Solved.

function Round(n, k) 
{
    var factor = Math.pow(10, k+1);
    n = Math.round(Math.round(n*factor)/10);
    return n/(factor/10);
}

mp.events.addCommand('gp', (player) => {
	const pozaX = player.position.x;
	const pozaY = player.position.y;
	const pozaZ = player.position.z;
	player.outputChatBox("X: " +Round(pozaX,3));
	player.outputChatBox("Y: " +Round(pozaY,3));
	player.outputChatBox("Z: " +Round(pozaZ,3));
});

 

[Rozi 0]

Math.Floor();