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Can lambda functions be templated?
...auto x){}; // imaginary syntax
}
In a constrained template you can only call other constrained templates. (Otherwise the constraints couldn't be checked.) Can foo invoke bar(x)? What constraints does the lambda have (the parameter for it is just a template, after all)?
Concepts weren't ready to t...
Set a default parameter value for a JavaScript function
...ing you want, including false or null. (typeof null == "object")
function foo(a, b) {
a = typeof a !== 'undefined' ? a : 42;
b = typeof b !== 'undefined' ? b : 'default_b';
...
}
share
|
imp...
Different return values the first and second time with Moq
...
// returning different values on each invocation
var mock = new Mock<IFoo>();
var calls = 0;
mock.Setup(foo => foo.GetCountThing())
.Returns(() => calls)
.Callback(() => calls++);
// returns 0 on first invocation, 1 on the next, and so on
Console.WriteLine(mock.Object.GetCou...
Escape quotes in JavaScript
I'm outputting values from a database (it isn't really open to public entry, but it is open to entry by a user at the company -- meaning, I'm not worried about XSS ).
...
Purging file from Git repo failed, unable to create new backup
...can find those in .git/refs/original/…. Either delete that directory and all files within, or use the -f flag to force Git to delete the old references.
git filter-branch -f \
--index-filter 'git rm --cached --ignore-unmatch Rakefile' HEAD
...
Mediator Vs Observer Object-Oriented Design Patterns
...-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically.
The Mediator pattern:
Define an object that encapsulates how a set of objects interact. Mediator promotes loose coupling by keeping objects from referring to each o...
Create a table without a header in Markdown
... headers
multimarkdown
Maruku: A popular implementation in Ruby
byword: "All tables must begin with one or more rows of headers"
PHP Markdown Extra "second line contains a mandatory separator line between the headers and the content"
RDiscount Uses PHP Markdown Extra syntax.
GitHub Flavoured Markd...
How do I pass extra arguments to a Python decorator?
...to wrap my head around.
class NiceDecorator:
def __init__(self, param_foo='a', param_bar='b'):
self.param_foo = param_foo
self.param_bar = param_bar
def __call__(self, func):
def my_logic(*args, **kwargs):
# whatever logic your decorator is supposed to i...
20个命令行工具监控 Linux 系统性能 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...这个命令最常用的格式：
# lsof
COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME
init 1 root cwd DIR 104,2 4096 2 /
init 1 root rtd DIR 104,2 4096 2 /
init 1 root...
What does Maven Update Project do in Eclipse?
...or doing a project update might revert what you have changed. There are usually some things I have to correct myself anyway though, such as build path exclusions that m2eclipse likes to put in and strange deployment assembly configurations.
...