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How to determine if a type implements a specific generic interface type
...s doesn't work for the asker's requirement of not knowing the generic type parameter. From your example testObject.GetType().Implements(typeof(IDictionary<,>)); will return false.
– ctusch
Sep 11 '12 at 9:14
...
Algorithm to get the excel-like column name of a number
...k https://vector.cool/php-number-convert-to-excel-column-letters-2
*
* @param int $num 欄數
* @param bool $uppercase 大小寫
* @return void
*/
function num_to_letters($n)
{
$n -= 1;
for ($r = ""; $n >= 0; $n = intval($n / 26) - 1)
$r = chr($n % 26 + 0x41) . $r;
...
Stop/Close webcam which is opened by navigator.getUserMedia
...Video with different browsers
For Opera 12
window.navigator.getUserMedia(param, function(stream) {
video.src =window.URL.createObjectURL(stream);
}, videoError );
For Firefox Nightly 18.0
window.navigator.mozGetUserMedia(param, function(stream...
?? Coalesce for empty string?
... my need as well as what I ended up using:
private static string Coalesce(params string[] strings)
{
return strings.FirstOrDefault(s => !string.IsNullOrEmpty(s));
}
Usage:
string result = Coalesce(s.SiteNumber, s.AltSiteNumber, "No Number");
EDIT:
An even more compact way of writing thi...
HashSet vs LinkedHashSet
...th the specified initial
* capacity and the specified load factor.
*
* @param initialCapacity the initial capacity of the hash map
* @param loadFactor the load factor of the hash map
* @param dummy ignored (distinguishes this
* constructor from o...
get name of a variable or parameter [duplicate]
I would like to get the name of a variable or parameter:
3 Answers
3
...
Can you do a partial checkout with Subversion?
...eing recusively checkingout, you could use --set-depth again with infinity param.
svn update --set-depth=infinity www
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HAproxy - Web负载均衡解决方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...heck inter 1500 rise 3 fall 3 backup
# server语法：server [:port] [param*] # 使用server关键字来设置后端服务器；为后端服务器所设置的内部名称[php_server_1]，该名称将会呈现在日志或警报中、后端服务器的IP地址，支持端口映射[10.12.25.68:80]...
method overloading vs optional parameter in C# 4.0 [duplicate]
which one is better? at a glance optional parameter seems better (less code, less XML documentation, etc), but why do most MSDN library classes use overloading instead of optional parameters?
...
mongodb: insert if not exists
... to do an "upsert". MongoDB has built-in support for this. Pass an extra parameter to your update() call: {upsert:true}. For example:
key = {'key':'value'}
data = {'key2':'value2', 'key3':'value3'};
coll.update(key, data, upsert=True); #In python upsert must be passed as a keyword argument
Th...