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getenv() vs. $_ENV in PHP
...m GetEnvironmentVariableA.
If on non-Windows, from the getenv function provided by libc.
As far as I can tell, the only time when it will behave in a case-insensitive manner is on Windows because that's how the Windows environment variable API behaves. If you're on Linux, BSD, Mac, etc then getenv...
DESTDIR and PREFIX of make
...
In case the ./configure file is not provided, one can still install to user-specific directory using: make prefix=/path/to/your/lib/libaio install
– Good Will
Dec 30 '18 at 22:24
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How do I update zsh to the latest version?
...eful and it's worth fixing whatever problems you're having with it. That said, I don't know that I want to use it to replace Apple's zsh...
– Marnen Laibow-Koser
Dec 3 '13 at 16:00
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jQuery .hasClass() vs .is()
...a comment and four upvotes to very comment. It turns out that what I had said is the correct answer. Here is the result:
http://jsperf.com/hasclass-vs-is-so
The is is multi-purpose, you can for example do is('.class'), is(':checked'), etc which means is has more to do where is hasClass is limited ...
How to make git-diff and git log ignore new and deleted files?
...is already built into git.
I'll leave this answer here since it might provide ideas for things that aren't built into git.
git diff shows new and deleted files by comparing them to /dev/null. It shouldn't be too difficult to write something (I'd use Perl myself) that looks for /dev/null and fil...
How to change variables value while debugging with LLDB in Xcode?
...
expr (void)[label setText:@"Foo"] should do it. Dot-Syntax usually won't work in the debugger. lldb probably interprets it as you wanted to access a member of a c-struct, but I'm not sure if this is the reason it won't work. Dot-Synt...
How to change the output color of echo in Linux
...things.
Usage
Specific tput sub-commands are discussed later.
Direct
Call tput as part of a sequence of commands:
tput setaf 1; echo "this is red text"
Use ; instead of && so if tput errors the text still shows.
Shell variables
Another option is to use shell variables:
red=`tput ...
PowerShell script to return versions of .NET Framework on a machine?
...://raw.githubusercontent.com/dotnet/docs/master/docs/framework/migration-guide/how-to-determine-which-versions-are-installed.md"
$md = Invoke-WebRequest $url -UseBasicParsing
$OFS = "`n"
# Replace the weird text in the tables, and the padding
# Then trim the | off the front and end of lines
$map = $...
jQuery: keyPress Backspace won't fire?
...s before your event handling code gets to it.
– srcspider
Feb 22 '11 at 13:20
5
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Providing a default value for an Optional in Swift?
The idiom for dealing with optionals in Swift seems excessively verbose, if all you want to do is provide a default value in the case where it's nil:
...