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How to watch for array changes?
...;
x.splice(1, 2, "x");
console.log("setting index 2...");
x[2] = "foo";
console.log("setting length to 10...");
x.length = 10;
console.log("updated array: %o", x.slice());
console.log("setting length to 2...");
x.length = 2;
console.log("extracting first element via ...
Can I escape html special chars in javascript?
... it on a fresh element if you just want to convert like this: const str = "foo<>'\"&"; $('<div>').text(str).html() yields foo&lt;&gt;'"&amp;
– amoebe
Nov 14 '17 at 21:46
...
Rename all files in directory from $filename_h to $filename_half?
...f.png/' *.png
Update:
example usage:
create some content
$ mkdir /tmp/foo
$ cd /tmp/foo
$ touch one_h.png two_h.png three_h.png
$ ls
one_h.png three_h.png two_h.png
test solution:
$ rename 's/_h.png/_half.png/' *.png
$ ls
one_half.png three_half.png two_half.png
...
Is it better in C++ to pass by value or pass by constant reference?
...pass-by-reference the compiler cannot assume that always. Simple example:
foo * f;
void bar(foo g) {
g.i = 10;
f->i = 2;
g.i += 5;
}
the compiler can optimize it into
g.i = 15;
f->i = 2;
since it knows that f and g doesn't share the same location. if g was a reference (foo &...
Using custom std::set comparator
... typedef std::set< T, ftor > t;
};
// usage
bool my_comparison( foo const &l, foo const &r );
set_funcomp< foo, my_comparison >::t boo; // just the way you want it!
Wow, I think that was worth the trouble!
...
Get current URL with jQuery?
...
http://www.refulz.com:8082/index.php#tab2?foo=789
Property Result
------------------------------------------
host www.refulz.com:8082
hostname www.refulz.com
port 8082
protocol http:
pathname index.php
href http://www.refulz.com:8082...
The Android emulator is not starting, showing “invalid command-line parameter”
...h:
"C:\Program Files (x86)\Android\android-sdk\tools\emulator-arm.exe" @foo
foo is the name of your virtual device.
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SQLAlchemy: Creating vs. Reusing a Session
... db_session.close()
connection.close()
Usage:
from mymodels import Foo
with db_session("sqlite://") as db:
foos = db.query(Foo).all()
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How to set custom location for local installation of npm package?
...o this by using the --prefix flag and the --global* flag.
pje@friendbear:~/foo $ npm install bower -g --prefix ./vendor/node_modules
bower@0.7.0 /Users/pje/foo/vendor/node_modules/bower
*Even though this is a "global" installation, installed bins won't be accessible through the command line unless ...
How to convert a Binary String to a base 10 integer in Java
...radix. There's an overload of Integer#parseInt() which allows you to.
int foo = Integer.parseInt("1001", 2);
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