Dùng javascript kiểm tra trình duyệt đang truy cập web, Chrome, Safari, Opera, Firefox…

function getBrowser() {
  const userAgent = navigator.userAgent;
  const vendor = navigator.vendor || '';

  console.log('userAgent', userAgent);
  console.log('vendor', vendor);

  if (/OPR\//.test(userAgent) || vendor.includes('Opera')) {
    return 'Opera';
  } else if (/Edg\//.test(userAgent)) {
    return 'Microsoft Edge';
  } else if (/Chrome/.test(userAgent) && vendor.includes('Google')) {
    return 'Google Chrome';
  } else if (/Safari/.test(userAgent) && vendor.includes('Apple')) {
    return 'Safari';
  } else if (/Firefox/.test(userAgent)) {
    return 'Mozilla Firefox';
  } else if (/MSIE|Trident/.test(userAgent)) {
    return 'Internet Explorer';
  } else {
    return 'Unknown Browser';
  }
}

console.log('You are using: ' + getBrowser());