Question

我正在尝试检测Flash支持，我正在尝试按照这个答案进行操作：Cross Browser Flash Detection in Javascript

我的代码如下，但我总是得到同样的错误：未定义swfobject。我不应该这样做因为我在支持flash（chrome和firefox）的浏览器中尝试它。

if(swfobject){
    console.log("you have swfobject.");

    if(swfobject.hasFlashPlayerVersion("1")){
        console.log("You have flash!");
    }
    else{
        console.log("You do not flash :(");
    }
}else{
    console.log("you don't have swfobject");
}

这是最新浏览器的问题吗？有没有其他方法可以检测到它？

Answer 1

如果未定义CURLOPT_URL，则表示您缺少必需的JavaScript文件。您可以通过CDN加载https://ajax.googleapis.com/ajax/libs/swfobject/2.2/swfobject.js

Answer 2

MDN page on flash带领我完成了一条完全不同的道路：

if(navigator.mimeTypes["application/x-shockwave-flash"]){
    var plugin = navigator.mimeTypes["application/x-shockwave-flash"].enabledPlugin;
    var description = plugin.description;
    var versionArray = description.match(/[\d.]+/g);
    var flashVersionOSXScriptable = 12;
    var flashVersion = parseInt(versionArray[0]);

    if(navigator.userAgent.indexOf("Mach-O")==-1){
        if(flashVersion >= flashVersionOSXScriptable){
            console.log("you have flash");
        }else{
            console.log("you don't have flash");
        }
    }
}else{
    console.log("you don't have flash");
}

Answer 3

尝试检查typeof object，如下所示：

if(typeof swfobject != "undefined"){ //Check if type of the object is undefined

    console.log("you have swfobject.");

    if(swfobject.hasFlashPlayerVersion("1")){
        console.log("You have flash!");
    }
    else{
        console.log("You do not flash :(");
    }
}else{
    console.log("you don't have swfobject");
}

swfobject未定义错误

3 个答案: