[checkIEVersion] Check is ie browser version. #check #javascript

checkIEVersion.js

(function() {
  setTimeout(function() {
    
    var div = document.createElement('div');
    div.id = 'js_ie_notsupport';
    div.innerHTML='<div class="ie-not-support">将浏览器更新为Firefox浏览器或Chrome浏览器，以获得更好的体验</div>'

    if (window.attachEvent) {
      window.attachEvent('onload', checkIEVersion);
    } else if (window.addEventListener) {
      window.addEventListener('load', checkIEVersion, false);
    }

    function checkIEVersion() {
      var ua = navigator.userAgent;
      if ((ua.indexOf('compatible') !== -1) && (ua.indexOf('MSIE') !== -1)) {
        if (ua.indexOf('rv') === -1) {
          document.body.appendChild(div);
        }
      }
    }
  }, 0)
})()