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Setting an image for a UIButton in code

How do you set the image for a UIButton in code? 11 Answers 11 ...
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Boolean operators && and ||

According to the R language definition , the difference between & and && (correspondingly | and || ) is that the former is vectorized while the latter is not. ...
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How to add custom validation to an AngularJS form?

I have a form with input fields and validation setup by adding the required attributes and such. But for some fields I need to do some extra validation. How would I "tap in" to the validation that FormController controls? ...
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How to change the remote repository for a git submodule?

I've created a git repository with a submodule in it. I'm able to tell the submodule itself to change its remote repository path, but I'm not sure how to tell the parent repository how to change the remote repository path for the submodule. ...
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Convert xlsx to csv in Linux with command line

I'm looking for a way to convert xlsx files to csv files on Linux. 10 Answers 10 ...
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How do I list all the columns in a table?

For the various popular database systems, how do you list all the columns in a table? 12 Answers ...
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Uninitialized constant ActiveSupport::Dependencies::Mutex (NameError)

... This is an incompatibility between Rails 2.3.8 and recent versions of RubyGems. Upgrade to the latest 2.3 version (2.3.11 as of today). share | ...
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How Should I Declare Foreign Key Relationships Using Code First Entity Framework (4.1) in MVC3?

I have been searching for resources on how to declare foreign key relationships and other constraints using code first EF 4.1 without much luck. Basically I am building the data model in code and using MVC3 to query that model. Everything works via MVC which is great (kudos to Microsoft!) but now I ...
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moment.js - UTC gives wrong date

... By default, MomentJS parses in local time. If only a date string (with no time) is provided, the time defaults to midnight. In your code, you create a local date and then convert it to the UTC timezone (in fact, it makes the moment instance switch to U...
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Deleting a file in VBA

Using VBA, how can I: 8 Answers 8 ...