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What's the role of GetHashCode in the IEqualityComparer in .NET?
...tes the hashcode and jumps to that location. The Equals method is a better test of equality, but cannot be used to map an object into an address space.
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What is the difference between a URI, a URL and a URN?
...URN?
The definition of URN is now looser than what I stated above. The latest RFC on URIs says that any URI can now be a URN (regardless of whether it starts with urn:) as long as it has "the properties of a name." That is: It is globally unique and persistent even when the resource ceases to exi...
What's wrong with nullable columns in composite primary keys?
...atch is that a constraint is not considered violated if the outcome of the test is UNKNOWN. This often makes it SEEM as if the comparison yields false, but it really doesn't.
– Erwin Smout
Feb 25 '15 at 14:06
...
source of historical stock data [closed]
...BUT usually all of this data is not very clean, once you really start back testing you'll see that certain stocks are missing or appear as two different symbols, or stock splits are not properly accounted for, etc. And then you realize that historical dividend data is need as well and so you start r...
jQuery: Return data after ajax call success [duplicate]
...e.
You can pass in a callback function that handles the result:
function testAjax(handleData) {
$.ajax({
url:"getvalue.php",
success:function(data) {
handleData(data);
}
});
}
Call it like this:
testAjax(function(output){
// here you use the output
});
// Note: the ca...
Understanding events and event handlers in C#
...GetInfo());
}
static void Main(string[] args) {
// Now lets test the event contained in the above class.
MyClass MyObject = new MyClass();
MyObject.OnMaximum += new MyEventHandler(MaximumReached);
for(int x = 0; x <= 15; x++) {
MyObject.MyValue = x;
...
How to securely store access token and secret in Android?
...argetSdkVersion 26
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
// Create BuildConfig variables
buildConfigField "String", "ACCESS_TOKEN", keystoreProperties["ACCESS_TOKEN"]
buildConfigFiel...
Is there a way to cache GitHub credentials for pushing commits?
...r:
[credential "https://github.com"]
username = peff
helper = "!f() { test $1 = get && echo password=`pass github/oauth`; }; f"
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Making WPF applications look Metro-styled, even in Windows 7? (Window Chrome / Theming / Theme)
...tal" HorizontalAlignment="Right" VerticalAlignment="Top" WindowChrome.IsHitTestVisibleInChrome="True" Grid.Row="0">
<Button Command="{Binding Source={x:Static SystemCommands.MinimizeWindowCommand}}" ToolTip="minimize" Style="{StaticResource WindowButtonS...
Python Infinity - Any caveats?
...ing systems implement all this behavior correctly. If you want to be sure, test for infinity prior to doing your calculations.
¹) Recently means since version 3.2.
²) Floating points support positive and negative zero, so: x / float('inf') keeps its sign and -1 / float('inf') yields -0.0, 1 / flo...