let connection = navigator.connection || navigator.mozConnection || navigator.webkitConnection || { effectiveType: undefined };
console.log(connection.effectiveType);
// 4g wifi......

open -a Simulator

x5-playsinline="true" // 解决Android中微信内置浏览器打开默认全屏
webkit-playsinline="true" //解决IOS中播放视频时会默认全屏展示
playsinline="true"

videoDom.play(); // 播放 
videoDom.pause(); // 暂停 
// 全屏 
if (this.videoDom.requestFullScreen) {
  this.videoDom.requestFullScreen();
} else if (this.videoDom.mozRequestFullScreen) {
  this.videoDom.mozRequestFullScreen();
} else if (this.videoDom.webkitRequestFullScreen) {
  this.videoDom.webkitRequestFullScreen();
} else if (this.videoDom.requestFullscreen) {
  this.videoDom.requestFullScreen();
} else if (this.videoDom.webkitRequestFullscreen) {
  this.videoDom.webkitRequestFullscreen();
} else if (this.videoDom.webkitSupportsFullscreen) {
  this.videoDom.webkitEnterFullscreen();
}

// IOS中退出全屏事件
this.videoDom.addEventListener(‘webkitendfullscreen‘, function () {
  that.videoStatus = false;
});
// Android中退出全屏事件
this.videoDom.addEventListener(‘x5videoexitfullscreen‘, function () {
  console.log(‘android video 退出全屏‘);
});

window.onresize = function temp(){
    // 做你想做的操作
}