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Haskell Type vs Data Constructor
...erstanding type constructors and data constructors. For example, I don't really understand the difference between this:
6 A...
How to call base.base.method()?
...Derived
{
public override void Say()
{
Console.WriteLine("Called from Special Derived.");
var ptr = typeof(Base).GetMethod("Say").MethodHandle.GetFunctionPointer();
var baseSay = (Action)Activator.CreateInstance(typeof(Action), this, ptr);
baseSay(...
find() with nil when there are no records
...
Yes, just do:
Challenge.find_by_id(10)
For Rails 4 and 5:
Challenge.find_by(id: 10)
share
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AngularJS sorting by property
...'s rows in the filter e.g. for(var objectKey in input) { input[objectKey]['_key'] = objectKey; array.push(input[objectKey]); } Like that we can use <div ng-repeat="value in object | orderObjectBy:'order'" ng-init="key = value['_key']">
– Nicolas Janel
Jul...
iPhone hide Navigation Bar only on first page
... hidden when the first view loads and then hidden when the "children" get called. Trouble is that I cannot find the event/action to trigger it to hide again when they get back to the root view....
...
Regex to match only letters
...pends on what definition of "latin character" you choose. J, U, Ö, Ä can all be argued to be latin characters or not, based on your definition. But they are all used in languages that use the "latin alphabet" for writing.
– Joachim Sauer
Sep 1 '10 at 12:23
...
MiniDumpWriteDump 记录dmp文件的简单实例（附调试方法） - C/C++ - 清泛网...
...#pragma comment(lib, "Dbghelp.lib")LONG WINAPI ExceptionHandler(LPEXCEPTION_POINTERS pExce...实例代码如下：
#include <DbgHelp.h>
#pragma comment(lib, "Dbghelp.lib")
LONG WINAPI ExceptionHandler(LPEXCEPTION_POINTERS pExceptionPointers)
{
char szFile[MAX_PATH] = {0};
SYSTEMTIME st = {...
CreateWindow()动态创建一个EditBox - C/C++ - 清泛IT论坛，有思想、有深度
...; // 创建EditBox
HWND m_wndEdit = CreateWindow(_T("EDIT"), 0, WS_CHILD | WS_VISIBLE | ES_WANTRETURN,
70, 4, 60, 16, m_hWnd, 0, 0, 0);
&nb...
ATL COM开发入门（一）（JS调用ActiveX/COM组件） - C/C++ - 清泛网 - 专注C/C++及内核技术
...g retStr;
retStr.Format(_T("%s%s"), *pStr1, *pStr2);
*pRetStr = retStr.AllocSysString();
return S_OK;
}
四、写一个简单的html网页进行测试：
<HTML>
<HEAD>
<TITLE>COM接口测试页</TITLE>
<script type="text/javascript">
function Test(){
var retStr = AtlDemoObj.Conc...
what is reverse() in Django
...!-- django <= 1.4 -->
<a href="{% url url_name %}">link which calls some_view</a>
<!-- django >= 1.5 or with {% load url from future %} in your template -->
<a href="{% url 'url_name' %}">link which calls some_view</a>
This will be rendered as:
<a href="...