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How do you echo a 4-digit Unicode character in Bash?
...
In UTF-8 it's actually 6 digits (or 3 bytes).
$ printf '\xE2\x98\xA0'
☠
To check how it's encoded by the console, use hexdump:
$ printf ☠ | hexdump
0000000 98e2 00a0
0000003
...
Get class list for element with jQuery
...
Mark Amery
98.8k4848 gold badges336336 silver badges379379 bronze badges
answered Aug 4 '09 at 12:44
redsquarere...
Get operating system info
.../windows me/i' => 'Windows ME',
'/win98/i' => 'Windows 98',
'/win95/i' => 'Windows 95',
'/win16/i' => 'Windows 3.11',
'/macintosh|mac...
How to implement classic sorting algorithms in modern C++?
...well as with std::next() are only available as of C++11 and beyond. For C++98, one needs to write these himself. There are substitutes from Boost.Range in boost::begin() / boost::end(), and from Boost.Utility in boost::next().
the std::is_sorted algorithm is only available for C++11 and beyond. For...
What does curly brackets in the `var { … } = …` statements do?
...es code much more succinct.
For example:
var ascii = {
a: 97,
b: 98,
c: 99
};
var {a, b, c} = ascii;
The above code is equivalent to:
var ascii = {
a: 97,
b: 98,
c: 99
};
var a = ascii.a;
var b = ascii.b;
var c = ascii.c;
Similarly for arrays:
var ascii = [97, 98, 9...
How to remove/delete a large file from commit history in Git repository?
...n page
| A login.html
* cb14efd Remove DVD-rip
| D oops.iso
* ce36c98 Careless
| A oops.iso
| A other.html
* 5af4522 Admin page
| A admin.html
* e738b63 Index
A index.html
Note that git lola is a non-standard but highly useful alias. With the --name-status switch, we can ...
How do I unbind “hover” in jQuery?
... 2016:
Still a popular question so it's worth drawing attention to @Dennis98's point in the comments below that in jQuery 1.9+, the "hover" event was deprecated in favour of the standard "mouseenter mouseleave" calls. So your event binding declaration should now look like this:
$('#myElement').off...
lenses, fclabels, data-accessor - which library for structure access and mutation is better
...kage includes the template-haskell plumbing, so the package is not Haskell 98, and it also requires the (fairly non-controversial) TypeOperators extension.
data-accessor
[Edit: data-accessor is no longer using this representation, but has moved to a form similar to that of data-lens. I'm keeping t...
string sanitizer for filename
...#\[\]@!$&\'()+,;=]| # URI reserved https://tools.ietf.org/html/rfc3986#section-2.2
[{}^\~`] # URL unsafe characters https://www.ietf.org/rfc/rfc1738.txt
~x',
'-', $filename);
// avoids ".", ".." or ".hiddenFiles"
$filename = ltrim($filename, '....
Are Exceptions in C++ really slow
... on exception performance?
“I want to know is this still true for C++98”
C++98 was the first C++ standard. For exceptions it introduced a standard hierarchy of exception classes (unfortunately rather imperfect). The main impact on performance was the possibility of exception specifications...