A useful class when working with Geometry

Geometry.js

/**
 * A class for basic geometric calculations.
 */
export default class Geometry {
  static PI = 3.141592653589793;

  
  static circleArea(radius) {
    if (radius < 0) {
      throw new Error("Radius cannot be negative");
    }
    return this.PI * radius * radius;
  }

  static circleCircumference(radius) {
    if (radius < 0) {
      throw new Error("Radius cannot be negative");
    }
    return 2 * this.PI * radius;
  }

  static rectangleArea(length, width) {
    if (length < 0 || width < 0) {
      throw new Error("Length and width cannot be negative");
    }
    return length * width;
  }

  static cubeVolume(side) {
    if (side < 0) {
      throw new Error("Side cannot be negative");
    }
    return side * side * side;
  }

  static degreeToRad(degree) {
    return degree * (this.PI / 180);
  }

  static radToDegree(rad) {
    return rad * (180 / this.PI);
  }

  static getDistance(point1, point2) {
    const dx = point2.x - point1.x;
    const dy = point2.y - point1.y;
    return Math.sqrt(dx * dx + dy * dy);
  }

  static getAngle(point1, point2) {
    const dx = point2.x - point1.x;
    const dy = point2.y - point1.y;
    return this.radToDegree(Math.atan2(dy, dx));
  }


  /**
   * Provides a one-line explanation for a method.
   * @param {string} methodName - The name of the method.
   * @returns {string} A one-line explanation for the method.
   */
  static help(methodName) {
    const helpMessages = {
      circleArea: 'Calculates the area of a circle given its radius.',
      circleCircumference: 'Calculates the circumference of a circle given its radius.',
      rectangleArea: 'Calculates the area of a rectangle given its length and width.',
      cubeVolume: 'Calculates the volume of a cube given its side length.',
      degreeToRad: 'Converts degrees to radians.',
      radToDegree: 'Converts radians to degrees.',
      getDistance: 'Calculates the Euclidean distance between two points.',
      getAngle: 'Calculates the angle (in degrees) between two points with respect to the x-axis.'
    };

    return helpMessages[methodName] || 'No help available for this method.';
  }
}