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What are the differences between virtual memory and physical memory?
...s you from the realm of caches and RAM to that of disk, which is slower by orders of magnitudes. Painfully, irrevocably, transcendentally slower. It is an I/O operation, which means it is not CPU bound (it is rather the exact opposite), which means it does not need to occupy RAM right now. However, ...
Why does modern Perl avoid UTF-8 by default?
...gs a whole lot more than I think you have.
As just one example, canonical ordering is going to cause some real headaches. ????"\x{F5}" ‘õ’, "o\x{303}" ‘õ’, "o\x{303}\x{304}" ‘ȭ’, and "o\x{304}\x{303}" ‘ō̃’ should all match ‘õ’, but how in the world are you going to do that...
Is “double hashing” a password less secure than just hashing it once?
... success drop sharply with each additional character. Instead, they use an ordered list of the most likely passwords. They start with "password123" and progress to less frequently used passwords.
Let's say an attackers list is long, with 10 billion candidates; suppose also that a desktop system ca...
How does the Windows Command Interpreter (CMD.EXE) parse scripts?
...e special characters & | < or >, split the line at this point in order to handle pipes, command concatenation, and redirection.
In the case of a pipe (|), each side is a separate command (or command block) that gets special handling in phase 5.3
In the case of &, &&, or || co...
What are Aggregates and PODs and how/why are they special?
...f the array elements we will initialize the non-static data members in the order of their appearance in the class definition (they are all public by definition). If there are fewer initializers than members, the rest are value-initialized. If it is impossible to value-initialize one of the members w...
What are the undocumented features and limitations of the Windows FINDSTR command?
... regex search for any line that contains both "hello" and "goodbye" in any order
/i /r /c:"hello.*goodbye" /c:"goodbye.*hello"
-i -r -c:"hello.*goodbye" /c:"goodbye.*hello"
/irc:"hello.*goodbye" /c:"goodbye.*hello"
Options may also be quoted. So /i, -i, "/i" and "-i" are all equivalent. Likewis...
Table with fixed header and fixed column on pure css
...ackground: #000;
color: #FFF;
/* Ensure this stays above the emulated border right in tbody th {}: */
z-index: 1;
}
tbody th {
background: #FFF;
border-right: 1px solid #CCC;
/* Browsers tend to drop borders on sticky elements, so we emulate the border-right using a box-shadow to ensure...
Making custom right-click context menus for my web-app
...
z-index: 1000;
position: absolute;
overflow: hidden;
border: 1px solid #CCC;
white-space: nowrap;
font-family: sans-serif;
background: #FFF;
color: #333;
border-radius: 5px;
padding: 0;
}
/* Each of the items in the list */
.custom-menu li {
...
“Thinking in AngularJS” if I have a jQuery background? [closed]
...entry.msg }}
</div>
</div>
And now instead of using an unordered list, we're using Bootstrap alert boxes. And we never had to change the controller code! But more importantly, no matter where or how the log gets updated, the view will change too. Automatically. Neat!
Though I didn...
Why aren't ◎ܫ◎ and ☺ valid JavaScript variable names?
...nt characters in e.g. Arabic. For such scripts, they need to be present in order to ensure proper display of the intended text.
– Michael Madsen
Sep 18 '11 at 13:34
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