浏览器全屏、退出全屏

1、浏览器全屏功能实现

//  全屏函数
function toggleFullscreen() {
    if (document.documentElement.requestFullscreen) {
        document.documentElement.requestFullscreen();
    } else if (document.documentElement.mozRequestFullScreen) { // Firefox
        document.documentElement.mozRequestFullScreen();
    } else if (document.documentElement.webkitRequestFullscreen) { // Chrome, Safari and Opera
        document.documentElement.webkitRequestFullscreen();
    } else if (document.documentElement.msRequestFullscreen) { // IE/Edge
        document.documentElement.msRequestFullscreen();
    }
}

2、退出全屏

2.1 按esc自动退出全屏

2.2 代码实现

// 退出全屏
function exitFullscreen() {
   if (document.exitFullscreen) {
            document.exitFullscreen();
        } else if (document.webkitCancelFullScreen) {
            document.webkitCancelFullScreen();
        } else if (document.mozCancelFullScreen) {
            document.mozCancelFullScreen();
        } else if (document.msExitFullscreen) {
            document.msExitFullscreen();
        }
}