/prog/ - Programming★

Go back to school.

Read a book.

Do any fucking beginner's tutorial.

If you are stumped on this, you really need to be reading, not asking questions on 8chan.

The answer: you can't do that in a for loop. Your question is focused too heavily. Step back and show more code, and this awfulness can be removed.

For example, if all you want to is frob all the audios on the page, i.e., if your code goes on to say frob(a0); frob(a1); etc., then you can do this:

var audio = document.getElementsByTagName("audio")
for (var i = 0, length = audio.length; i < length; i++) {
  frob(audio[i])
}

Actually b/c JavaScript you totally can do exactly what you wrote with a for loop, assuming global scope on those vars, but I'm not going to tell you how, because it's fucking stupid.

You don't.

You keep those things in the array.

#def MAGIC 69

T a[MAGIC];
	// magically allocated

for (auto i = 0; i < MAGIC; ++i) {
	a[i] = thingy.get("tagname")[i];
		// magically copied
}

>>4282

Is this a virus?

>>4303

Please don't compile that code. It right fucked my computer… I'm getting a new HD today.

>>4257

>To be fair I had this problem too when I was a noobfag. I wanted to create new variables using a for loop but didn't know how the fuck to do that. Now I know you can't and must use an array.

You're still a noob. Learn how namespaces work, idiot.

>>3717 (OP)

Sure, OP. Other fags here don't seem to know how to answer basic questions because they're actually stumped as to how to perfectly emulate your code. It's easy, actually.

for (var x = 0; x <= 3; x++) window['a' + x] = document.getElementsByTagName("audio")[x];

After that code runs, you can then reference a0, a1, a2, and a3 as normal.

You might want to consider making a namespace of their own to go into though, that way they won't just be tossed into the same group as everything else.

>>3720

Get off this board, idiot. Don't answer questions if you don't know the answer.