基于js实现判断浏览器类型代码实例

//判断是否是IE浏览器
function isIE() {
  var b = navigator.userAgent;
  var isOpera = userAgent.indexOf("Opera") > -1; //判断是否Opera浏览器
  var a = (b.indexOf("patible") > -1 && b.indexOf("MSIE") > -1 && !isOpera) || (b.indexOf("Windows NT 6.1; Trident/7.0;") > -1 || b.indexOf("Windows NT 6.1; WOW64; Trident/7.0;") > -1);
  if (a) {
    return true
  } else {
    return false
  }
}