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What is the 'dynamic' type in C# 4.0 used for?
...ithout having to cast it.
dynamic cust = GetCustomer();
cust.FirstName = "foo"; // works as expected
cust.Process(); // works as expected
cust.MissingMethod(); // No method found!
Notice we did not need to cast nor declare cust as type Customer. Because we declared it dynamic, the runtime takes o...
How to compare arrays in JavaScript?
... will never be equal, even if they contain same data at the moment:
({a:1, foo:"bar", numberOfTheBeast: 666}) == ({a:1, foo:"bar", numberOfTheBeast: 666}) //false
This has a reason, since there may be, for example private variables within objects.
However, if you just use object structure to conta...
Using curl POST with variables defined in bash script functions
...out shell quoting rules:
The double quotes in the -H arguments (as in -H "foo bar") tell bash to keep what's inside as a single argument (even if it contains spaces).
The single quotes in the --data argument (as in --data 'foo bar') do the same, except they pass all text verbatim (including double...
How to convert a scala.List to a java.util.List?
...n ClassNotFoundException: scala.collection.convert.Wrappers. Arrays.asList(foo : _*) works in this case.
– Mohan
Jun 27 '15 at 11:41
...
How do I know the script file name in a Bash script?
...ink "$0" || echo "$0")")"
IMO, that'll produce confusing output. "I ran foo.sh, but it's saying I'm running bar.sh!? Must be a bug!" Besides, one of the purposes of having differently-named symlinks is to provide different functionality based on the name it's called as (think gzip and gunzip o...
Git keeps prompting me for a password
... This may be it. When I call git remote -v I get: origin github.com/Foo/Bar.git (fetch) origin github.com/Foo/Bar.git (push) whereas to work with SSH it seems that it should be: origin git@github.com:Foo/Bar.git (fetch) origin git@github.com:Foo/Bar.git (push) This may ...
Shell脚本编程30分钟入门 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...有语句执行，就不要写这个else。
还要注意，sh里的if [ $foo -eq 0 ]，这个方括号跟Java/PHP里if后面的圆括号大不相同，它是一个可执行程序（和cd, ls, grep一样），相不到吧？在CentOS上，它在/usr/bin目录下：
ll /usr/bin/[
-rwxr-xr-x. 1 ro...
Class method decorator with self arguments?
...*method_kwargs)
return method_output + "!"
return _impl
class Foo:
@wrapper
def bar(self, word):
return word
f = Foo()
result = f.bar("kitty")
print(result)
Which will print:
kitty!
share
...
What are five things you hate about your favorite language? [closed]
...building your own function, or using the '@' operator:
$x = isset($_POST['foo']['bar']) ? $_POST['foo']['bar'] : null;
6) Bonus answer: '@'. If you can't be bothered writing your code correctly, just add '@', and too bad for anyone who has to debug your code later.
...
How to make a chain of function decorators?
...)
func()
print("~salad~")
return wrapper
def sandwich(food="--ham--"):
print(food)
sandwich()
#outputs: --ham--
sandwich = bread(ingredients(sandwich))
sandwich()
#outputs:
#</''''''\>
# #tomatoes#
# --ham--
# ~salad~
#<\______/>
Using the Python decorator syn...