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How can I detect if a selector returns null?

What is the best way to detect if a jQuery-selector returns an empty object. If you do: 8 Answers ...
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How to add a downloaded .box file to Vagrant?

How do I add a downloaded .box file to Vagrant's list of available boxes? The .box file is located on an external drive. ...
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How to replace all dots in a string using JavaScript

I want to replace all the occurrences of a dot( . ) in a JavaScript string 15 Answers ...
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What are the key differences between Meteor, Ember.js and Backbone.js? [closed]

Learning Ember.js / Backbone.js has been on my to-do list for a while. Now that Meteor is out, I am just wondering if anyone with experience of Meteor, Ember.js and Backbone.js can summarize the key differences and pros and cons of these three JavaScript frameworks for a person without any experie...
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What should be in my .gitignore for an Android Studio project?

What files should be in my .gitignore for an Android Studio project? 31 Answers 31 ...
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SQL Server - copy stored procedures from one db to another

I am new to SQL, and what I needed to do was to combine 2 .mdf databases into one. I did that using SQL Server 2008 Manager - Tasks > Import/Export tables.The tables and views were copied successfully, but there are no Stored procedures in the new database. Is there any way to do that? ...
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The ViewData item that has the key 'MY KEY' is of type 'System.String' but must be of type 'IEnumera

I am trying to populate a dropdown list from a database mapped with Linq-2-SQL, using ASP.NET MVC 2, and keep getting this error. ...
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How to open an elevated cmd using command line for Windows?

How do I open a elevated command prompt using command lines on a normal cmd? 22 Answers ...
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'git status' shows changed files, but 'git diff' doesn't

I've had a look at all similar questions. However, I've double checked and something strange is definitely happening. 13 An...
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Django: ImproperlyConfigured: The SECRET_KEY setting must not be empty

I am trying to set up multiple setting files (development, production, ..) that include some base settings. Cannot succeed though. When I try to run ./manage.py runserver I am getting the following error: ...