Пример реализации цепного стиля программирования.

example9.js

class Point {
	constructor () {
		const point = this;
		
		point.x = 0;
		point.y = 0;
		point.color = 'red';
	}
	
	moveTo (x, y) {
		const point = this;
		
		point.x = x;
		point.y = y;
		
		return point;
	}
	
	setColor (color) {
		const point = this;
		
		point.color = color;
		
		return point;
	}
	
	draw () {
		const point = this;
		
		console.log(`Point of (${point.x};${point.y}) position and '${point.color}' color drawed!`);
		
		return point;
	}
}

const point = new Point;
point.moveTo(100, 200)
	.setColor('red')
	.draw();

// Point of (100;200) position and 'red' color drawed!