I am trying to verify whether the parent element has a unique child element by element name.
I also need to verify that there is at least one possible element.
Example
It will work but
Tag: pattern
Mode matching – un paid flex record (you need to know the name of all fields in this context)
I have been trying to create a function with a list of tuples as parameters, but I keep getting the error: “Unparsed flex record (need to know the names of all fields in this context)” My code is:<
Coding mode C #
A few days ago I encountered some code that looked like this during the code review.
public void DoSomeTasks( )
{
if (CheckSomeState()==true) return;
DoTaskOne();
if (CheckSomeState()==tru
Ruby – Display error mode
In my code, I usually use the following settings:
module MyLib
VERSION = “0.1 .1”
ERROR = [
“You can either give one arg and a block or two args, not both.”,
“Yadda yadda…”
]< br />end
C # Standard IDSPOSE mode
.net’s GC mechanism has two problems: First, GC cannot release all resources, and it cannot release unmanaged resources. Secondly, GC is not real-time, and all GCs are uncertain.
In order to solve
C # Static class single case mode comparison
The company’s classes need to be implemented in a singleton mode, which can save resources and avoid the generation of duplicate objects. But the static class can also do this, and it is more conci
C # Design mode: Interpreter mode (Interpreter Pattern)
One, C# design pattern: Interpreter Pattern
1, the application of interpreter pattern is the difficulty in the application of Interpreter pattern, only to meet the “frequent changes in busine
Design mode – decorator mode
Define
The decorator pattern dynamically attaches responsibility to the object. To extend functionality, decorators provide a more flexible alternative than inheritance.
Implementation points
Design mode – Enjoyment mode
1. What is Flyweight Pattern
Flyweight Pattern is mainly used to reduce the number of objects created to reduce Memory usage and improved performance. This type of design pattern is a struct
Compilation – How to access USB ports through BIOS in 16-bit X86 real mode?
I am a newbie in the conference world,
I am trying to write some assembly code to communicate with hardware devices, such as serial, parallel, VGA, Keyboard and so on.
I am using the re