Type parameters

• T

  Type of the objects to compare.

  class Vector implements Comparable<Vector> {
    constructor(private x: number, private y: number) {}
    add(vector: Vector) : Vector {
      return new Vector(this.x + vector.x, this.y + vectory.y)
    }
    get abs2() : number {
      return this.x*this.x + this.y*this.y;
    }
    get abs() : number {
      return Math.sqrt(this.x*this.x + this.y*this.y);
    }
    compareTo(vector: Vector) : number {
      return this.abs2 - vector.abs2;
    }
    static get compare() : Comparator<Vector> {
      return byProp("abs2")
    }
  }
  
  [new Vector(2,3), new Vector(1,2)].sort(Vector.compare);