Detect Flash with JavaScript

Question

Possible Duplicate:
How can I detect if Flash is installed and if not, display a hidden div that informs the user?

so:

var _isflash = navigator.plugins['Shockwave Flash'];  
if(_isflash == "undefined")
{
  console.log("not exists flash")
}
else
{
  console.log("flash!") 
}

why this not work?

document.write(_isflash) // undefined

if flash off, _isflash = undefined... please help me

Look at that : http://stackoverflow.com/questions/998245/how-can-i-detect-if-flash-is-installed-and-if-not-display-a-hidden-div-that-inf — Michael Laffargue, Sep 13 '12 at 12:47
Not sure what the python tag is doing on this question, or django, for that matter. — Martijn Pieters, Sep 13 '12 at 12:48
Whoa, what's with all the downvotes? The OP obviously doesn't have English as a first language, but they've made an effort to ask and provided some code. The question isn't perfect, but it's certainly answerable. — James M, Sep 13 '12 at 12:50

score 1 · Answer 1 · answered Sep 13 '12 at 12:49

1

In your example, "undefined" is a string, so the two are not equal. This will do what you are trying to do:

if(!_isflash)
{
    console.log("not exists flash")
}

answered Sep 13 '12 at 12:49

egbrad

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mornaner · Answer 2 · 2012-09-13T12:54:45.317

0

You are expecting _isflash to be a string "undefined". You should do this:

if(_isflash == undefined)

edited Sep 13 '12 at 12:54

answered Sep 13 '12 at 12:48

mornaner

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Detect Flash with JavaScript

2 Answers2