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Sorting an array of objects in Ruby by object attribute?
I have an array of objects in Ruby on Rails. I want to sort the array by an attribute of the object. Is it possible?
9 Answ...
Best way to disable button in Twitter's Bootstrap [duplicate]
I am confused when it comes to disabling a <button> , <input> or an <a> element with classes: .btn or .btn-primary , with JavaScript/jQuery.
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Conveniently Declaring Compile-Time Strings in C++
Being able to create and manipulate strings during compile-time in C++ has several useful applications. Although it is possible to create compile-time strings in C++, the process is very cumbersome, as the string needs to be declared as a variadic sequence of characters, e.g.
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Forward an invocation of a variadic function in C
In C, is it possible to forward the invocation of a variadic function? As in,
12 Answers
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In C#, what happens when you call an extension method on a null object?
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That will work fine (no exception). Extension methods don't use virtual calls (i.e. it uses the "call" il instruction, not "callvirt") so there is no null check unless you write it yourself in the extension method. This is actually useful in...
“The file ”MyApp.app“ couldn't be opened because you don't have permission to view it” when running
Whenever I try to run my app in Xcode 6 Beta 4 I am getting the error:
57 Answers
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Rails and PostgreSQL: Role postgres does not exist
I have installed PostgreSQL on my Mac OS Lion, and am working on a rails app. I use RVM to keep everything separate from my other Rails apps.
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NPM doesn't install module dependencies
This is my package.json for the module that I'm including in the parent project:
16 Answers
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Apply formula to the entire column
I'm trying to recode all the zip code from Column A into Column B with the formula:
10 Answers
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Best way to create custom config options for my Rails app?
...ication. It can be the same for all environments. I found that if I set it in environment.rb , it's available in my views, which is exactly what I want...
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