'use strict';/*** Get the distance between two points, (x1, y1) and (x2, y2)* @param {number} x1* @param {number} y1* @param {number} x2* @param {number} y2* @returns {number} Distance between the two points.*/var getDistance = function(x1, y1, x2, y2) {return Math.sqrt(Math.pow(x1 - x2, 2) + Math.pow(y1 - y2, 2));};module.exports = {getDistance: getDistance,};