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What is the difference between \r and \n?
How are \r and \n different? I think it has something to do with Unix vs. Windows vs. Mac, but I'm not sure exactly how they're different, and which to search for/match in regexes.
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Is it possible to use JavaScript to change the meta-tags of the page?
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Yes, you can do that.
There are some interesting use cases: Some browsers and plugins parse meta elements and change their behavior for different values.
Examples
Skype: Switch off phone number parser
<meta name="SKYPE_TOOLBAR" con...
Bootstrap 3 Glyphicons are not working
I downloaded bootstrap 3.0 and can't get the glyphicons to work. I get some kind of "E003" error. Any ideas why this is happening? I tried both locally and online and I still get the same problem.
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How to change the type of a field?
...pe.
In this case, it looks like you're trying to change the $type from 1 (double) to 2 (string).
So simply load the document from the DB, perform the cast (new String(x)) and then save the document again.
If you need to do this programmatically and entirely from the shell, you can use the find(.....
Depend on a branch or tag using a git URL in a package.json?
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From the npm docs:
git://github.com/<user>/<project>.git#<branch>
git://github.com/<user>/<project>.git#feature\/<branch>
As of NPM version 1.1.65, you can do this:
<user>/<project>#<...
“From View Controller” disappears using UIViewControllerContextTransitioning
...al to inspect the view hierarchy after the screen goes black. The key UIWindow is completely empty – no view hierarchy at all!
I played around a bit and it looks like there is an easy workaround, for simple cases. You can just re-add the toViewController's view as a subview of the key window's:...
What is the best Distributed Brute Force countermeasure?
...o
If an attacker is targeting variable usernames, our username throttling doesn't fire. If the attacker is using a botnet or has access to a large IP range, our IP throttling is powerless. If the attacker has pre-scraped our userlist (usually possible on open-registration web services), we can't de...
Is it possible to style a select box? [closed]
...://gist.github.com/1139558 (Used to he here, but it looks like the site is down.)
Use it like this:
$('#myselectbox').selectbox();
Style it like this:
div.selectbox-wrapper ul {
list-style-type:none;
margin:0px;
padding:0px;
}
div.selectbox-wrapper ul li.selected {
background-color: #E...
Are multiple `.gitignore`s frowned on?
...ore in the top directory of your project ignores generated programs, while Documentation/.gitignore ignores generated documentation.
Ignore given files only in given (sub)directory (you can use /sub/foo in .gitignore, though).
Please remember that patterns in .gitignore file apply recursively to t...
How to remove unused C/C++ symbols with GCC and ld?
... the code into separate sections within the translation unit. This will be done for functions, classes, and external variables by using the following two compiler flags:
-fdata-sections -ffunction-sections
Link the translation units together using the linker optimization flag (this causes the lin...