Strange square / rectangular symbols within .js files in temporary internet files

[Syex]

Hi, I've been studying web design on and off for a few years now, i'm new to this site and this is my first post. To begin:

I've been snooping within the 'temporary internet files' folder and have copied a few javascript and css files to analyze, some of them contain rectangular type squares and I think they haven't been put there by the script writer but by some process since they've been put online.

G.o.o.g.l.e search engine didn't accept the squares when I tried to paste them in.

Can anyone tell me the who, what, when, where, why and how of these strange squares, essentially what they are and how they got there. I have an idea they're something to do with unicode carriage returns or something like that.

I've attached a screenshot of one the files so you see what I mean.

Probably a simple answer to this question, thanks in advance.

Syex

[Dr John]

Probably new line characters in a different character set.

[CKEANEDesign]

Yeah.
I recommend downloading TextPad when writing code out. It works with HTML, Javascript, CSS, everything!

Plus it's free.

I doubt those squares would be there in TextPad.

[molona]

It could be a problem with the character set and for the position of the squares I think that they are related to hidden characters such as.... the intro!!

That's what I think they are... intros

[AutisticCuckoo]

It could be that the original files are using Unix-style line breaks (\n). Notepad on Windows don't understand those, if I recall correctly, since it expects DOS-style line breaks (\r\n). It therefore tries to render the line break character, which, of course, doesn't have a printable glyph, so it gets replaced with a missing-glyph glyph (the empty square).