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Super-simple example of C# observer/observable with delegates
...re's an example:
using System;
class Observable
{
public event EventHandler SomethingHappened;
public void DoSomething() =>
SomethingHappened?.Invoke(this, EventArgs.Empty);
}
class Observer
{
public void HandleEvent(object sender, EventArgs args)
{
Console.Wri...
Is there a JavaScript / jQuery DOM change listener?
... // ...
});
// define what element should be observed by the observer
// and what types of mutations trigger the callback
observer.observe(document, {
subtree: true,
attributes: true
//...
});
This example listens for DOM changes on document and its entire subtree, and it will fire on chang...
When to choose mouseover() and hover() function?
What are the differences between jQuery .mouseover() and .hover() functions? If they are totally same why jQuery uses both?
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Copying data from one SQLite database to another
I have 2 SQLite databases with common data but with different purposes and I wanted to avoid reinserting data, so I was wondering if it was possible to copy a whole table from one database to another?
...
Changing .gitconfig location on Windows
By default on Windows Git places global .gitconfig in c:\documents and settings\user\
13 Answers
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How to fix Hibernate LazyInitializationException: failed to lazily initialize a collection of roles,
...nticate method allowing any lazy collection to be retrieved from the db as and when you try to use them.
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Generate unique random numbers between 1 and 100
How can I generate some unique random numbers between 1 and 100 using JavaScript?
29 Answers
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How are strings passed in .NET?
...// What gets printed?
}
There are three things you need to know to understand what happens here:
Strings are reference types in C#.
They are also immutable, so any time you do something that looks like you're changing the string, you aren't. A completely new string gets created, the reference is p...
Copy files from one directory into an existing directory
...irectory, not the directory itself. This method also includes hidden files and folders.
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Drop rows with all zeros in pandas data frame
I can use pandas dropna() functionality to remove rows with some or all columns set as NA 's. Is there an equivalent function for dropping rows with all columns having value 0?
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