Detects if the browser has flash and its version installed

Detects if the browser has flash and its version installed

Here are a few points to be aware of.

1. Get all the Elements

• Ie:

     
       
      
  
      
        
       
  document.all
     
       
      

• FireFox:

     
       
      
  
      
        
       
  document.getElementsByTagName(*)
     
       
      

2, check whether the plug-in installation (Flash)

• ie:

   
       
     
   
        
      
    var   swf  =  new    activexobject   (  ' Shockwaveflash.shockwaveflash '    
   
       
     

• Firefox:

    
       
     
  
     
        
      
  //navigator的首字母必须是小写，大写是不正确的
     
        
      
  var swf=navigator.plugins["Shockwave Flash"]
    
       
     

The complete code is as follows:

  
 

   
  

  
/**
   
  

  
 * 检测浏览器是否安装了flash; 返回json，f:是否安装;v:若安装，则返回版本号
   
  

  
 * @returns {{f: number, v: number}}
   
  

  
 */
   
  

  
function checkFlash() {
   
  

  
 var hasFlash = 0;
   
  

  
 var flashVersion = 0;
   
  

  
 var swf = null;
   
  

  
 //document.all为IE下，document.getElementsByTagName("*")为非IE
   
  

  
 if (document.all || document.getElementsByTagName("*")) {
   
  

  
 try {
   
  

  
 swf = new ActiveXObject(‘ShockwaveFlash.ShockwaveFlash‘);
   
  

  
 if (swf) {
   
  

  
 hasFlash = 1;
   
  

  
    vswf    =   SWF   getvariable    "$version"    
   
  

  
 flashVersion = parseInt(VSwf.split(" ")[0].split(",")[0]);
   
  

  
 }
   
  

  
 }
   
  

  
 catch (e) {
   
  

  
 //catch不能做处理，而且必须要捕捉;
   
  

  
 //否则在firefox,下，ActiveXObject会出错，下面的代码不会再去执行
   
  

  
 }
   
  

  
 if (!swf){
   
  

  
 //navigator首字母必须是小写，大写是错误的
   
  

  
    if     ( navigator   plugins  &&   navigator   plugins   length  >    0  )    {  
   
  

  
 var swf = navigator.plugins["Shockwave Flash"];
   
  

  
 if (swf) {
   
  

  
 hasFlash = 1;
   
  

  
    var   words  =   SWF  Span class= "pun". description   split      
   
  

  
    for     ( var   I  =    0  ;   I  <   words   length    I  ++)    {  
   
  

  
 if (isNaN(parseInt(words[i]))) {
   
  

  
 continue;
   
  

  
 }
   
  

  
 flashVersion = parseInt(words[i]);
   
  

  
 }
   
  

  

   
  

  
 }
   
  

  
 }
   
  

  
 }
   
  

  

   
  

  
 }
   
  

  
 return {f: hasFlash, v: flashVersion}
   
  

  
}
  
 

From for notes (Wiz)

Detects if the browser has flash and its version installed