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What is the use of having destructor as private?

...e connection being open or a file being written. You could have a "request_delete" method in the class or the manager that will check that condition and it will either delete or decline, and return a status telling you what it did. That's far more flexible that just calling "delete". ...
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Why do we use __init__ in Python classes?

...ical piece of understanding: the difference between a class and an object. __init__ doesn't initialize a class, it initializes an instance of a class or an object. Each dog has colour, but dogs as a class don't. Each dog has four or fewer feet, but the class of dogs doesn't. The class is a concept o...
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How to use ng-repeat without an html element

...or object before each element and iterate the new var: <div class="c477_group"> <div class="c477_group_item" ng-repeat="item in itemsWithSeparator" ng-switch="item.id" ng-class="{'-divider' : item.id == 'SEPARATOR'}"> <div class="c478" ng-switch-when="FAS"/> <div class="c4...
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What's the best UI for entering date of birth? [closed]

...birthdate. A text box with an example is clear, quick and easy to enter: _______ |_______| (example: 31/3/1970) This should support flexible formatting such as 1/1/1970 or 20/07/70. If you have to support different cultures with different date conventions (e.g. US and UK) then this could be err...
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CListCtrl 行高设置,自定义行高 - C/C++ - 清泛网 - 专注C/C++及内核技术

...ListCtrl { public: CMyListCtrl(void); ~CMyListCtrl(void); DECLARE_MESSAGE_MAP() virtual void MeasureItem(LPMEASUREITEMSTRUCT lpMeasureItemStruct); virtual void OnMeasureItem(int nIDCtl, LPMEASUREITEMSTRUCT lpMeasureItemStruct); virtual void DrawItem(LPDRAWITEMSTRUCT lpMeasureItemS...
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Format a datetime into a string with milliseconds

... Useful with timezone too: date = datetime(2019,5,10) date_with_tz = pytz.timezone('Europe/Rome').localize(date) date_with_tz.isoformat(sep='T', timespec='milliseconds') output: '2019-05-10T00:00:00.000+02:00' – Ena May 10 '19 at 9:17 ...
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Web API Put Request generates an Http 405 Method Not Allowed error

... <handlers> <remove name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" /> <remove name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" /> <remove name="ExtensionlessUrlHandler-Integrated-4.0" /> <add name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" path="*." verb="G...
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error: passing xxx as 'this' argument of xxx discards qualifiers

...ere the value type is the same as the key type, both iterator and const_iterator are constant iterators. It is unspecified whether or not iterator and const_iterator are the same type. So VC++ 2008 Dinkumware implementation is faulty. Old answer: You got that error because in certain...
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What is the fastest way to check if a class has a function defined?

...tr() to get the attribute, and callable() to verify it is a method: invert_op = getattr(self, "invert_op", None) if callable(invert_op): invert_op(self.path.parent_op) Note that getattr() normally throws exception when the attribute doesn't exist. However, if you specify a default value (None...
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Bold & Non-Bold Text In A Single UILabel?

...d: 2012/10/14 21:59" We only need to create the attributed string: if ([_label respondsToSelector:@selector(setAttributedText:)]) { // iOS6 and above : Use NSAttributedStrings // Create the attributes const CGFloat fontSize = 13; NSDictionary *attrs = @{ NSFontAttributeNa...