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What does the * * CSS selector do?

... Just like any other time you put two selectors one after another (for example li a), you get the descendant combinator. So * * is any element that is a descendant of any other element — in other words, any element that isn't the root element of the whole docum...
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Django migration strategy for renaming a model and relationship fields

...ll ask you for Did you rename the appname.oldName model to NewName? [y/N] select Y Run python manage.py migrate and it will ask you for The following content types are stale and need to be deleted: appname | oldName appname | NewName Any objects related to these content types by a foreign key...
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How to calculate the SVG Path for an arc (of a circle)

...so far, there are actually four arcs that could be drawn, so the two flags select one of them. I'm guessing you probably want to draw a small arc (meaning large-arc-flag=0), in the direction of decreasing angle (meaning sweep-flag=0). All together, the SVG path is: M 200 175 A 25 25 0 0 0 182.322 2...
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How can I return an empty IEnumerable?

...rExists) yield break; foreach(var descendant in doc.Descendants("user").Select(user => new Friend { ID = user.Element("id").Value, Name = user.Element("name").Value, URL = user.Element("url").Value, Photo = user.Element("photo").Value })) { yield r...
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Union Vs Concat in Linq

...ence is not changed. If you will override Equals and GetHashCode (used to select distinct items), then items will not be compared by reference: class X { public int ID { get; set; } public override bool Equals(object obj) { X x = obj as X; if (x == null) re...
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IIS_IUSRS and IUSR permissions in IIS8

...the underline): Press OK to add the user With the new user (your domain) selected, now you can safely provide any Modify or Write permissions share | improve this answer | ...
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How to get element by classname or id

...e Angular): var wrappedResult = angular.element(result); If you want to select from the element in a directive's link function you need to access the DOM reference instead of the the jqLite reference - element[0] instead of element: link: function (scope, element, attrs) { var elementResult =...
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What's the difference between session.persist() and session.save() in Hibernate?

...st(entity); session.getTransaction().commit(); session.close(); Result: select nextval ('hibernate_sequence') // This is for vehicle Id generated : 36 insert into Employee_Vehicle ( Vehicle_Name, Vehicle_Id) values ( Honda, 36) Note the result is same when you get an already persisted object an...
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What is the difference between a dialog being dismissed or canceled in Android?

...l() will normally be called when the user hits the back button rather than selecting the choices that alert dialog offers like OK/Dismiss and return null/no value to the caller. While dialog.dismiss() is normally called when the user selects from the choices that alert dialog offers like hitting the...
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Eclipse and Windows newlines

...ine Delimiters to : Unix Tip: You can easily convert existing file by selecting then in the Package Explorer, and then going to the menu entry File : Convert Line Delimiters to : Unix share | i...