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What does “where T : class, new()” mean?
...gt;
where T : class, new()
{
}
class Checks
{
INewable<int> cn1; // ALLOWED: has parameterless ctor
INewable<string> n2; // NOT ALLOWED: no parameterless ctor
INewable<MyStruct> n3; // ALLOWED: has parameterless ctor
INewable<MyClass1> n4; // ALLOWED: has...
How to extract base URL from a string in JavaScript?
...nally the port of the URL.
For example, location.origin of the URL http://www.sitename.com/article/2009/09/14/this-is-an-article/ is http://www.sitename.com.
To target browsers without support for location.origin use the following concise polyfill:
if (typeof location.origin === 'undefined')
...
Does Python have “private” variables in classes?
...names the variable.
class A:
def __init__(self):
self.__var = 123
def printVar(self):
print self.__var
Now, if you try to access __var outside the class definition, it will fail:
>>>x = A()
>>>x.__var # this will return error: "A has no attribute __var...
Linux 搭建NTP时间同步服务器 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
... 标注：如果对crontab定时任务不熟悉请查看本博客 http://www.cnblogs.com/zoulongbin/p/6187238.html
3、Windows客户端
控制面板->日期和时间->设置日期和时间->Internet时间->更改设置
输入对应的NTP服务器IP，然后确定即可，如下图：
...
Write a number with two decimal places SQL server
...ters to display, and the number of decimal places to display
Select Str(12345.6789, 12, 3)
displays: ' 12345.679' ( 3 spaces, 5 digits 12345, a decimal point, and three decimal digits (679). - it rounds if it has to truncate, (unless the integer part is too large for the total size, in whic...
jQuery deferreds and promises - .then() vs .done()
...tion (x) { // Suppose promise returns "abc"
console.log(x);
return 123;
}).then(function (x){
console.log(x);
}).then(function (x){
console.log(x)
})
The following results will get logged:
abc
123
undefined
While
promise.done(function (x) { // Suppose promise returns "abc"
...
Why does Javascript's regex.exec() not always return the same value? [duplicate]
...ignment as the loop condition.
var re = /foo_(\d+)/g,
str = "text foo_123 more text foo_456 foo_789 end text",
match,
results = [];
while (match = re.exec(str))
results.push(+match[1]);
DEMO: http://jsfiddle.net/pPW8Y/
If you don't like the placement of the assignment, the loo...
Preventing referenced assembly PDB and XML files copied to output
...Include="be;cs;cs-CZ;da;de;es;fa;fi;fr;ja;it;ko;mk;nl;pl;pt;ru;sv;tr;uk;zh-CN;zh-CHS;zh-CHT">
<InProject>false</InProject>
</FluentValidationExcludedCultures>
</ItemGroup>
<Target Name="RemoveTranslationsAfterBuild" AfterTargets="AfterBuild" Condition=" '$...
Map vs Object in JavaScript
...d Symbol keys where as Maps support more or less any key type.
If I do obj[123] = true and then Object.keys(obj) then I will get ["123"] rather than [123]. A Map would preserve the type of the key and return [123] which is great. Maps also allow you to use Objects as keys. Traditionally to do this y...
Javascript equivalent of Python's zip function
...mple:
_tarrin = [0..constructor, function(){}, false, undefined, '', 100, 123.324,
2343243243242343242354365476453654625345345, 'sdf23423dsfsdf',
'sdf2324.234dfs','234,234fsf','100,100','100.100']
_parseInt = function(i){return parseInt(i);}
_tarrout = _tarrin.map(_parseInt)
_tarr...