js 常用功能

// 判断是否是手机
function isMobile() {
    var browser = {
        versions: function () {
            var u = navigator.userAgent, app = navigator.appVersion;
            return {         //移动终端浏览器版本信息
                trident: u.indexOf('Trident') > -1, //IE内核
                presto: u.indexOf('Presto') > -1, //opera内核
                webKit: u.indexOf('AppleWebKit') > -1, //苹果、谷歌内核
                gecko: u.indexOf('Gecko') > -1 && u.indexOf('KHTML') == -1, //火狐内核
                mobile: !!u.match(/AppleWebKit.*Mobile.*/), //是否为移动终端
                ios: !!u.match(/(i[^;]+;( U;)? CPU.+Mac OS X/), //ios终端
                android: u.indexOf('Android') > -1 || u.indexOf('Linux') > -1, //android终端或uc浏览器
                iPhone: u.indexOf('iPhone') > -1, //是否为iPhone或者QQHD浏览器
                iPad: u.indexOf('iPad') > -1, //是否iPad
                webApp: u.indexOf('Safari') == -1 //是否web应该程序,没有头部与底部
            };
        }(),
        language: (navigator.browserLanguage || navigator.language).toLowerCase()
    }
    if (browser.versions.mobile) {
        return true;
    } else {
        return false;
    }
}

// 动态加载css
function includeLinkStyle(url) {
    var link = document.createElement("link");
    link.rel = "stylesheet";
    link.type = "text/css";
    link.href = url;
    document.getElementsByTagName('body')[0].appendChild(link);
}
 
// 合并数组对象
var merge = tableTunnel.map((item) => {
   let location = data.find(data => data.tuniface === item.tuniface);
  return { ...item, ip: location.ip, address: location.address }
});

  

原文地址:https://www.cnblogs.com/lbx6935/p/14503934.html