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What is the difference between :focus and :active?
...h. It just exists. If we use Tab to give "focus" to the <button>, it now enters its :focus state. If you then click (or press space), you then make the button enter its (:active) state.
On that note, when you click on an element, you give it focus, which also cultivates the illusion that :foc...
Linux: copy and create destination dir if it does not exist
... might have a shell that doesn't support this construct. However, I don't know of any modern shells that don't support $_; certainly Bash, Dash, and zsh all do.
A final note: the command I've given at the start of this answer assumes that your directory names don't have spaces in. If you're deali...
Assembly code vs Machine code vs Object code?
...he commands to new machine code and executes them. Modern interpreters are now much more complicated: evaluating whole sections of source code at a time, caching and optimizing where possible, and handling complex memory management tasks.
One final type of program involves the use of a runtime-envir...
Difference between except: and except Exception as e: in Python
...pt and except Exception. "Something to watch out for" looks a little weird now, but at the time I expected Python to pick the most specific except block, regardless of where it was, and was a little disappointed to find out otherwise.
– Vanessa Phipps
Sep 5 '14...
Error when installing windows SDK 7.1
...
This is a known issue http://support.microsoft.com/kb/2717426
CAUSE
This issue occurs when you install the Windows 7 SDK on a computer
that has a newer version of the Visual C++ 2010 Redistributable
installed.
RESOLUTION
...
Example of Named Pipes
...tion<SomeClass> conn)
{
Console.WriteLine("Client {0} is now connected!", conn.Id);
conn.PushMessage(new SomeClass { Text: "Welcome!" });
};
server.ClientMessage += delegate(NamedPipeConnection<SomeClass> conn, SomeClass message)
{
Console.WriteLine("...
Create Pandas DataFrame from a string
...ndas-docs/stable/api.html?highlight=compat so leaving the answer as is for now.
– Emil H
Dec 12 '17 at 6:04
...
How can I replace text with CSS?
...;
button {
background-color: green;
color: black;
padding: 5px;
}
Now let's hide the original element, but add another block element afterwards:
button {
visibility: hidden;
}
button:after {
content:'goodbye';
visibility: visible;
display: block;
position: absolute;
background...
How do I determine whether my calculation of pi is accurate?
...rd, the common practice is just to verify the computed digits against the known values. So that's simple enough.
In fact, I have a webpage that lists snippets of digits for the purpose of verifying computations against them: http://www.numberworld.org/digits/Pi/
But when you get into world-recor...
Accessing localhost:port from Android emulator
...
Not working for me right now, but here's the link to the Android docs and it's clear that this is what sould do it (10.0.2.2); developer.android.com/tools/devices/emulator.html
– Stuart Hallows
May 17 '14 at 7:0...