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How to filter None's out of List[Option]?
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NicolasNicolas
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Programmatically change the src of an img tag
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edited Jan 24 '13 at 7:15
answered Jul 30 '12 at 13:18
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Forward declaration of nested types/classes in C++
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answered Jun 4 '09 at 15:23
Adam RosenfieldAdam Rosenfield
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How to enable cross-origin resource sharing (CORS) in the express.js framework on node.js
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Michelle TilleyMichelle Tilley
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C++中智能指针的设计和使用 - C/C++ - 清泛网 - 专注C/C++及内核技术
...释放对象拥有权限、引用计数等，控制权转移等）。auto_ptr 即是一种常见的智能指针。
智能指针通常用类模板实现：
template <class T>
class smartpointer
{
private:
T *_ptr;
public:
smartpointer(T *p) : _ptr(p) //构造函数
{
}
T& oper...
Conditional HTML Attributes using Razor MVC3
...n't hear it from me, the PM for Razor, but in Razor 2 (Web Pages 2 and MVC 4) we'll have conditional attributes built into Razor(as of MVC 4 RC tested successfully), so you can just say things like this...
<input type="text" id="@strElementID" class="@strCSSClass" />
If strCSSClass is null ...
Struggling with NSNumberFormatter in Swift for currency
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Here's an example on how to use it on Swift 3.
( Edit: Works in Swift 4 too )
let price = 123.436 as NSNumber
let formatter = NumberFormatter()
formatter.numberStyle = .currency
// formatter.locale = NSLocale.currentLocale() // This is the default
// In Swift 4, this ^ has been renamed to sim...
iOS - Dismiss keyboard when touching outside of UITextField
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Vadim F.
47422 silver badges1616 bronze badges
answered Mar 15 '11 at 0:36
Jensen2kJensen2k
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Deleting multiple elements from a list
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114
You can use enumerate and remove the values whose index matches the indices you want to remove:
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