dataClump.js

// From Rachel M. Carmena's https://github.com/rachelcarmena/code-smells

class DistanceCalculator {
  betweenPoints(x1, y1, x2, y2) {
    return Math.sqrt(Math.pow((y2 - y1), 2) + Math.pow(x2 - x1, 2));
  }

  toOriginFrom(x, y) {
    return Math.sqrt(Math.pow(y, 2) + Math.pow(x, 2));
  }
}

// In some client
const distanceCalculator = new DistanceCalculator();
const distance = distanceCalculator.betweenPoints(1, 2, 3, 4);
const distanceToOrigin = distanceCalculator.toOriginFrom(5, 5);


//----------------------------------------------------------------------------
//----------------------------------------------------------------------------

export class Point {
  
  static origin() {
    return Point.new(0, 0);
  }

  static new(x, y) {
    return new Point(x, y);
  }

  constructor(x, y) {
    this.x = x;
    this.y = y;
  }

  distanceTo(another) {
    return Math.sqrt(
      Math.pow((another.y - this.y), 2) +
      Math.pow(another.x - this.x, 2)
    );
  }
}

// In some client
const distance = Point.new(1, 2).distanceTo(Point.new(3, 4));
const distanceToOrigin = Point.origin().distanceTo(Point.new(5, 5));