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How to test if parameters exist in rails
I'm using an IF statement in Ruby on Rails to try and test if request parameters are set. Regardless of whether or not both parameters are set, the first part of the following if block gets triggered. How can I make this part ONLY get triggered if both params[:one] and params[:two] is set?
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In a Git repository, how to properly rename a directory?
I think it should work to copy the directory to be renamed to a new directory with desired name, and delete the old directory , and git add , git commit and push everything. But is this the best way?
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How do you make a LinearLayout scrollable?
I have lot of items on the screen and I need to use the scrollbar so the user can scroll down. However, the scroll is either not visible or it's not working. How is it possible to add a scrollbar to a LinearLayout ?
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How does this JavaScript/jQuery syntax work: (function( window, undefined ) { })(window)?
Have you ever taken a look under the hood at the jQuery 1.4 source code and noticed how it's encapsulated in the following way:
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Traverse a list in reverse order in Python
So I can start from len(collection) and end in collection[0] .
26 Answers
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Android Studio Editor Font Sizing
Is there any way to make the editor text larger in Android Studio?
10 Answers
10
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Method Overloading for null argument
I have added three methods with parameters:
7 Answers
7
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Error 330 (net::ERR_CONTENT_DECODING_FAILED):
Recently we migrated to a new server. After 2 days, I got the following issues
16 Answers
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Adding two numbers concatenates them instead of calculating the sum
I am adding two numbers, but I don't get a correct value.
22 Answers
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How do I open an old MVC project in Visual Studio 2012 or Visual Studio 2013?
I have an old ASP.NET MVC 2 project which I do not want to upgrade to MVC 3 or MVC 4. I am working on a new machine running Windows 8, Visual Studio 2012 and Visual Studio 2013. When I try to open the MVC 2 project in VS 2012 or VS 2013 I receive the error:
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