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Is using a lot of static methods a bad thing?
...inating object:
i.e., changing:
public class BarUtil {
public static Foo transform(Bar toFoo) { ... }
}
into
public class Bar {
...
public Foo transform() { ...}
}
however in many situations this isn't possible (e.g., regular class code generation from XSD/WSDL/etc), or it will ma...
What is the purpose of willSet and didSet in Swift?
...ified without needing another field. For instance, in that example:
class Foo {
var myProperty: Int = 0 {
didSet {
print("The value of myProperty changed from \(oldValue) to \(myProperty)")
}
}
}
myProperty prints its old and new value every time it is modified...
Python how to write to a binary file?
...ng code example using Python 3 syntax:
from struct import pack
with open("foo.bin", "wb") as file:
file.write(pack("<IIIII", *bytearray([120, 3, 255, 0, 100])))
Here is shell one-liner:
python -c $'from struct import pack\nwith open("foo.bin", "wb") as file: file.write(pack("<IIIII", *by...
Batch equivalent of Bash backticks
...nly the first word is output. Run this at the prompt: for /f %a in ('"echo foo bar"') do echo "%a". It will print "foo".
– Dan Dascalescu
Nov 28 '14 at 5:59
...
Combine --user with --prefix error with setup.py install
...m. It was hidden inside the ~/.config/pip/pip.conf with:
[global]
target=/foo/bar
Such a config was created by a third-party script without my knowledge.
I suggest checking the pip configuration files and removing the target=/foo/bar options.
...
What are major differences between C# and Java?
...pe parameter and substitutes Object everywhere. For instance if you have a Foo<T> class the java compiler generates Byte Code as if it was Foo<Object>. This means casting and also boxing/unboxing will have to be done in the "background".
I've been playing with Java/C# for a while now an...
What are the most-used vim commands/keypresses?
...nt block; < unindent block
gv reselect last visual block
Global
:%s/foo/bar/g substitute all occurrences of "foo" to "bar"
% is a range that indicates every line in the file
/g is a flag that changes all occurrences on a line instead of just the first one
Searching
/ search forward; ? ...
How to check whether a script is running under Node.js?
...ser and under Node.js:
if (typeof window === 'undefined') {
exports.foo = {};
} else {
window.foo = {};
}
It might still explode in case that window is defined in Node.js but there's no good reason for someone do this, since you would explicitly need to leave out var or set the proper...
C语言结构体里的成员数组和指针 - c++1y / stl - 清泛IT社区，为创新赋能！
...t;
struct str{
int len;
char s[0];
};
struct foo {
struct str *a;
};
int main(int argc, char** argv) {
struct foo f={0};
if (f.a->s) {
printf( f.a->s);
}
...
Left-pad printf with spaces
...er can optimise printf formats. For instance, GCC optimises printf("%s\n", foo) and replaces it with puts(foo).
– sam hocevar
Jan 10 '10 at 1:16
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