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How to drop columns using Rails migration
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edited Mar 9 '17 at 15:03
Darpan Chhatravala
41044 silver badges1515 bronze badges
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How does View Controller Containment work in iOS 5?
...ession 102, Apple introduced View Controller Containment, which is the ability to create custom view controller containers, analogous to UITabBarController , UINavigationController , and the like.
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Proper way to initialize a C# dictionary with values?
I am creating a dictionary in a C# file with the following code:
6 Answers
6
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How to Test a Concern in Rails
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The method you found will certainly work to test a little bit of functionality but seems pretty fragile—your dummy class (actually just a Struct in your solution) may or may not behave like a real class that includes your concern. Additionally if you're trying to test model ...
Returning a value from thread?
... variable that will hold the return value from the thread and then capture it in a lambda expression. Assign the "return" value to this variable from the worker thread and then once that thread ends you can use it from the parent thread.
void Main()
{
object value = null; // Used to store the ret...
How to migrate GIT repository from one server to a new one
...er that I'm taking down. The only thing I have left to migrate is my repository. This server is listed as the origin (master) for one of my projects. What is the proper way to move the repository to keep the history.
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Can I use a min-height for table, tr or td?
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It's not a nice solution but try it like this:
<table>
<tr>
<td>
<div>Lorem</div>
</td>
</tr>
<tr>
<td>
<di...
Two-dimensional array in Swift
...repeating: Array(repeating: 0, count: 2), count: 3)
Change element at position
arr[0][1] = 18
OR
let myVar = 18
arr[0][1] = myVar
Change sub array
arr[1] = [123, 456, 789]
OR
arr[0] += 234
OR
arr[0] += [345, 678]
If you had 3x2 array of 0(zeros) before these changes, now you have: ...
How to sum array of numbers in Ruby?
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edited Jul 26 '19 at 16:51
Fernando Briano
7,5091313 gold badges5353 silver badges7474 bronze badges
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how to implement regions/code collapse in javascript
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Blog entry here explains it and this MSDN question.
You have to use Visual Studio 2003/2005/2008 Macros.
Copy + Paste from Blog entry for fidelity sake:
Open Macro Explorer
Create a New Macro
Name it OutlineRegions
Click Edit macro and paste the...