浏览器判断是ie

    let userAgent = navigator.userAgent;
    let isIE = userAgent.indexOf('compatible') > -1 && userAgent.indexOf('MSIE') > -1;
    let isIE11 = userAgent.indexOf('Trident') > -1 && userAgent.indexOf('rv:11.0') > -1;
    let isEdge = userAgent.indexOf('Edg/') > -1;
    if(isIE || isIE11 || isEdge ){
      // 如果是ie都弹出
        alert("是ie！！！")
    }

标签：判断,浏览器,indexOf,isIE11,isIE,let,userAgent,ie
来源： https://www.cnblogs.com/hushunv/p/15964727.html