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How can I delete a git alias?
...set alias.trololo
warning: alias.trololo has multiple values
Use --unset-all
git config --global --unset-all
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Why do we use arrays instead of other data structures?
...des O(1) access time.
MyArray [5]
^ ^
Pointer Offset
All other data structures either build upon this, or do not use adjacent memory for storage, resulting in poor random access look up time (Though there are other benefits to not using sequential memory).
For example, let's s...
LINQ: When to use SingleOrDefault vs. FirstOrDefault() with filtering criteria
...amount of results but you state that you only want the first one.
I personally find the semantics very different and using the appropriate one, depending on the expected results, improves readability.
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How in node to split string by newline ('\n')?
... can help you out:
var os = require('os');
a.split(os.EOL);
This is usually more useful for constructing output strings from Node though, for platform portability.
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How To Get IPython Notebook To Run Python 3?
... 3 instead of 2 on my MAC 10.9, I did the following steps
$ sudo pip3 install ipython[all]
Then
$ ipython3 notebook
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Should I instantiate instance variables on declaration or in the constructor?
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There is no difference - the instance variable initialization is actually put in the constructor(s) by the compiler.
The first variant is more readable.
You can't have exception handling with the first variant.
There is additionally the initialization block, which is as well put in the constru...
Android: Specify two different images for togglebutton using XML
...d come last. Arrange the items in the following manner to ensure they will all be utilized:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="true" android:state_pressed="true" /> //currently pressed turning the toggle on
<item...
Understanding events and event handlers in C#
I understand the purpose of events, especially within the context of creating user interfaces. I think this is the prototype for creating an event:
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What is stack unwinding?
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Stack unwinding is usually talked about in connection with exception handling. Here's an example:
void func( int x )
{
char* pleak = new char[1024]; // might be lost => memory leak
std::string s( "hello world" ); // will be properly de...
Access Container View Controller from Parent iOS
...troller is made a child of the first view controller. prepareForSegue: is called just before this happens. you can use this opportunity to pass data to the child, or to store a reference to the child for later use. see also developer.apple.com/library/ios/#documentation/uikit/reference/…
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