implement isHeadless utill

Author: xr0master

src/utils/isHeadless/isHeadless.spec.ts

@@ -0,0 +1,23 @@
+import { it, expect } from '@jest/globals';
+import { isHeadless } from './isHeadless';
+
+it('should be headless browser', () => {
+  expect(isHeadless(navigator)).toBeTruthy();
+});
+
+it('should be headless browser without languages', () => {
+  expect(
+    isHeadless({
+      webdriver: false,
+    } as Navigator),
+  ).toBeTruthy();
+});
+
+it('should be headfull browser', () => {
+  expect(
+    isHeadless({
+      webdriver: false,
+      languages: ['un'],
+    } as unknown as Navigator),
+  ).toBeFalsy();
+});

src/utils/isHeadless/isHeadless.ts

@@ -0,0 +1,3 @@
+export const isHeadless = (navigator: Navigator) => {
+  return navigator.webdriver || !navigator.languages || navigator.languages.length === 0;
+};