What am I missing exactly?

Question

Hello everyone, so I have coded this a couple of different ways and I am looking for the most efficient way of doing this (I'm new to PS so please bear with my incompetence -- I am going through PS training so one day I will be answering questions rather
than asking them :) )
Essentially I need to be able to recurse a directory and log all files to a txt document when matched against an array. My code currently looks like this, however, it's not returning any results:
$audioFileExtensions = @(".aac",".aif",".aiff",".asf",".asx",".au",".avi",".flac",".m3u",".m4a",".mid",".midi",".mov",".mp1",".mp2",".mp3",".mp4",".mpa",".mpe",".mpeg2",".mpeg3",".mpg",".ogg",".qt",".qtw",".ram",".rm",".mi",".mvb",".snd",".swf",".vob",".wav",".wax",".wma",".wmv",".wvx")
Get-ChildItem -Path \\MHT-FS1\UserHomeDrives -Recurse | Where-Object {$_.Extension -contains $audioFileExtensions} | Select-Object FullName > C:\audioFileResults.txt
I've also created a forEach statement and although this works, it seems to be very inefficient and slow as it is looping through each item in the array and performing the recursive GCI method. 
How would I best write this code to produce the results I am looking for in the most efficient manner?
Thanks in advance!
Cheers,
G-

Answer 1

Listen,
Your question tells everyone you are ignorant in PowerShell, because the solution is quite simple.
You declare yourself completely ignorant in REGEX, even though you suggest me to look into his REGEX example - don't you think you're to naive and stupid suggesting something you don't understand?
Look at his REGEX example: it's an abusive use of REGEX, because it' unnecessary! PowerShell will automatically convert it back to
string! 
And you dare to suggest me code from this rubbishell coder, after I posted almost 20 reasons why his code is rubbishel!
You should just shut your mouth up and cross your hands to not expose your low IQ and retarded mental maturity, thinking you are someone capable of suggesting anything to anyone (let alone about REGEX that I know more you and him together).
The fact that you posted in favor of him and against me, just shows you are one more idiot joining the rubbishell coders brotherhood!
Next time you think to advise someone, ask your parents first, or your brothers, sisters, husbands and wifes, and they'll tell you: '' hey little kid, it's not your business, so keep your huge curvy S out of this. ''
I suppose if I had the attitude you have I wouldn't have any friends; I say that because I've trolled your posts just because I was curious if you were really so cynical and as it turns out, you seem to make more enemies than friends. I'm really not
too sure why you feel it necessary to teach in such a mean-spirited way. Seriously, man, you're a smart dude act like one. Calling people idiots, stupid, ignorant (although I understand the English meaning of ignorant, it's not something you call people) and
the like... you will go no where in life no matter how smart you think you are. When you start putting yourself above others by degrading them, the only thing you are doing is putting yourself beneath them and you lose effectiveness with those you are trying
to teach. Once you lose effectiveness, you've lost communication. Once you've lost communication no one wants or has the desire to listen to you or your way of doing things any longer.
You can call me anything you want, I do not know you and I will not lose any sleep over your comments. I only wish I could get through to you so that maybe you can succeed in building relationships rather than destroying them. You may be smart, however, that
smart brain does not match your nasty behavior towards others. You may want to think about building your interpersonal skills rather than your PowerShell/coding skills; I can guarantee your personal skills will get you much further than your coding skills.
You're behavior seems to match that of a school yard bully and no one likes a bully.
Think about it. Think why are people so against me? What am I saying that offends them? How can I get people to like me and how can I spread my knowledge in a more effective way? How do I win friends and influence people? There's a book authored by
Dale Carnegie titled exactly that: "How to Win Friends and Influence People", perhaps you could take some time to read it and learn from it just as you read and learn from the help files associated with your preferred coding language.
Just a suggestion from one human to another and in no way insulting. You'll make the forums a much more pleasant place to come ask for help and learn from others -- such as yourself.
And last but not least... You were not born into PowerShell or coding, you began as a clean slate -- nothing on it, therefore, you had to learn through experience. Give people a break by easing up on them, no one knows as much as we all do. "Who am
I to tell you anything?" you once asked... well, I am someone, probably the only one here, that has your best interest in mind. Be kind to people.