diff --git a/src/utils/commonUtils.test.ts b/src/utils/commonUtils.test.ts
index 6ca595d3..c5ed8f7e 100644
--- a/src/utils/commonUtils.test.ts
+++ b/src/utils/commonUtils.test.ts
@@ -1,28 +1,28 @@
-import { expect, describe, it } from 'vitest'
-import { getLongitude, getLatitude, getCoordinates } from './commonUtils'
+import { describe, expect, it } from "vitest";
+import { getCoordinates, getLatitude, getLongitude } from "./commonUtils";
 
-describe('getLongitude', () => {
+describe("getLongitude", () => {
   const mapCoordinates = { lonW: -10, lonT: 20 };
   const graphWidth = 1000;
 
-  it('should calculate longitude at the left edge (x=0)', () => {
+  it("should calculate longitude at the left edge (x=0)", () => {
     expect(getLongitude(0, mapCoordinates, graphWidth, 2)).toBe(-10);
   });
 
-  it('should calculate longitude at the right edge (x=graphWidth)', () => {
+  it("should calculate longitude at the right edge (x=graphWidth)", () => {
     expect(getLongitude(1000, mapCoordinates, graphWidth, 2)).toBe(10);
   });
 
-  it('should calculate longitude at the center (x=graphWidth/2)', () => {
+  it("should calculate longitude at the center (x=graphWidth/2)", () => {
     expect(getLongitude(500, mapCoordinates, graphWidth, 2)).toBe(0);
   });
 
-  it('should respect decimal precision', () => {
+  it("should respect decimal precision", () => {
     // 333/1000 * 20 = 6.66, -10 + 6.66 = -3.34
     expect(getLongitude(333, mapCoordinates, graphWidth, 4)).toBe(-3.34);
   });
 
-  it('should handle different map coordinate ranges', () => {
+  it("should handle different map coordinate ranges", () => {
     const wideMap = { lonW: -180, lonT: 360 };
     expect(getLongitude(500, wideMap, graphWidth, 2)).toBe(0);
     expect(getLongitude(0, wideMap, graphWidth, 2)).toBe(-180);
@@ -30,68 +30,109 @@ describe('getLongitude', () => {
   });
 });
 
-describe('getLatitude', () => {
+describe("getLatitude", () => {
   const mapCoordinates = { latN: 60, latT: 40 };
   const graphHeight = 800;
 
-  it('should calculate latitude at the top edge (y=0)', () => {
+  it("should calculate latitude at the top edge (y=0)", () => {
     expect(getLatitude(0, mapCoordinates, graphHeight, 2)).toBe(60);
   });
 
-  it('should calculate latitude at the bottom edge (y=graphHeight)', () => {
+  it("should calculate latitude at the bottom edge (y=graphHeight)", () => {
     expect(getLatitude(800, mapCoordinates, graphHeight, 2)).toBe(20);
   });
 
-  it('should calculate latitude at the center (y=graphHeight/2)', () => {
+  it("should calculate latitude at the center (y=graphHeight/2)", () => {
     expect(getLatitude(400, mapCoordinates, graphHeight, 2)).toBe(40);
   });
 
-  it('should respect decimal precision', () => {
+  it("should respect decimal precision", () => {
     // 60 - (333/800 * 40) = 60 - 16.65 = 43.35
     expect(getLatitude(333, mapCoordinates, graphHeight, 4)).toBe(43.35);
   });
 
-  it('should handle equator-centered maps', () => {
+  it("should handle equator-centered maps", () => {
     const equatorMap = { latN: 45, latT: 90 };
     expect(getLatitude(400, equatorMap, graphHeight, 2)).toBe(0);
   });
 });
 
-describe('getCoordinates', () => {
+describe("getCoordinates", () => {
   const mapCoordinates = { lonW: -10, lonT: 20, latN: 60, latT: 40 };
   const graphWidth = 1000;
   const graphHeight = 800;
 
-  it('should return [longitude, latitude] tuple', () => {
-    const result = getCoordinates(500, 400, mapCoordinates, graphWidth, graphHeight, 2);
+  it("should return [longitude, latitude] tuple", () => {
+    const result = getCoordinates(
+      500,
+      400,
+      mapCoordinates,
+      graphWidth,
+      graphHeight,
+      2,
+    );
     expect(result).toEqual([0, 40]);
   });
 
-  it('should calculate coordinates at top-left corner', () => {
-    const result = getCoordinates(0, 0, mapCoordinates, graphWidth, graphHeight, 2);
+  it("should calculate coordinates at top-left corner", () => {
+    const result = getCoordinates(
+      0,
+      0,
+      mapCoordinates,
+      graphWidth,
+      graphHeight,
+      2,
+    );
     expect(result).toEqual([-10, 60]);
   });
 
-  it('should calculate coordinates at bottom-right corner', () => {
-    const result = getCoordinates(1000, 800, mapCoordinates, graphWidth, graphHeight, 2);
+  it("should calculate coordinates at bottom-right corner", () => {
+    const result = getCoordinates(
+      1000,
+      800,
+      mapCoordinates,
+      graphWidth,
+      graphHeight,
+      2,
+    );
     expect(result).toEqual([10, 20]);
   });
 
-  it('should respect decimal precision for both coordinates', () => {
-    const result = getCoordinates(333, 333, mapCoordinates, graphWidth, graphHeight, 4);
+  it("should respect decimal precision for both coordinates", () => {
+    const result = getCoordinates(
+      333,
+      333,
+      mapCoordinates,
+      graphWidth,
+      graphHeight,
+      4,
+    );
     expect(result[0]).toBe(-3.34); // longitude
     expect(result[1]).toBe(43.35); // latitude
   });
 
-  it('should use default precision of 2 decimals', () => {
-    const result = getCoordinates(333, 333, mapCoordinates, graphWidth, graphHeight);
+  it("should use default precision of 2 decimals", () => {
+    const result = getCoordinates(
+      333,
+      333,
+      mapCoordinates,
+      graphWidth,
+      graphHeight,
+    );
     expect(result[0]).toBe(-3.34);
     expect(result[1]).toBe(43.35);
   });
 
-  it('should handle global map coordinates', () => {
+  it("should handle global map coordinates", () => {
     const globalMap = { lonW: -180, lonT: 360, latN: 90, latT: 180 };
-    const result = getCoordinates(500, 400, globalMap, graphWidth, graphHeight, 2);
+    const result = getCoordinates(
+      500,
+      400,
+      globalMap,
+      graphWidth,
+      graphHeight,
+      2,
+    );
     expect(result).toEqual([0, 0]); // center of the world
   });
 });
diff --git a/src/utils/commonUtils.ts b/src/utils/commonUtils.ts
index 2268e518..6808eb11 100644
--- a/src/utils/commonUtils.ts
+++ b/src/utils/commonUtils.ts
@@ -391,7 +391,14 @@ declare global {
   }
 
   // Global variables defined in main.js
-  var mapCoordinates: { latT?: number; latN?: number; latS?: number; lonT?: number; lonW?: number; lonE?: number };
+  var mapCoordinates: {
+    latT?: number;
+    latN?: number;
+    latS?: number;
+    lonT?: number;
+    lonW?: number;
+    lonE?: number;
+  };
   var graphWidth: number;
   var graphHeight: number;
 }
diff --git a/src/utils/index.ts b/src/utils/index.ts
index eb7a1ea8..59b4b528 100644
--- a/src/utils/index.ts
+++ b/src/utils/index.ts
@@ -231,12 +231,7 @@ import {
 } from "./commonUtils";
 
 window.clipPoly = (points: [number, number][], secure?: number) =>
-  clipPoly(
-    points,
-    graphWidth,
-    graphHeight,
-    secure,
-  );
+  clipPoly(points, graphWidth, graphHeight, secure);
 window.getSegmentId = getSegmentId;
 window.debounce = debounce;
 window.throttle = throttle;
@@ -248,28 +243,11 @@ window.link = link;
 window.isCtrlClick = isCtrlClick;
 window.generateDate = generateDate;
 window.getLongitude = (x: number, decimals?: number) =>
-  getLongitude(
-    x,
-    mapCoordinates,
-    graphWidth,
-    decimals,
-  );
+  getLongitude(x, mapCoordinates, graphWidth, decimals);
 window.getLatitude = (y: number, decimals?: number) =>
-  getLatitude(
-    y,
-    mapCoordinates,
-    graphHeight,
-    decimals,
-  );
+  getLatitude(y, mapCoordinates, graphHeight, decimals);
 window.getCoordinates = (x: number, y: number, decimals?: number) =>
-  getCoordinates(
-    x,
-    y,
-    mapCoordinates,
-    graphWidth,
-    graphHeight,
-    decimals,
-  );
+  getCoordinates(x, y, mapCoordinates, graphWidth, graphHeight, decimals);
 
 // Initialize prompt when DOM is ready
 if (document.readyState === "loading") {