Elegant and practical C# code optimization skills sharing

Here are some elegant and practical C# code optimization tips:

Use LINQ instead of loops and conditional statements: LINQ provides a concise, easy-to-read way to manipulate collections, which can make the code more elegant and efficient.

Using lambda expressions: lambda expressions can simplify the code and make the code more readable.

Use var keywords: Using var keywords can make the code more concise and reduce duplicate code.

Using the Attribute Accessor: Using the Attribute Accessor can make the code clearer and easier to understand and reduce redundant code.

Using generics: Generics can make the code more flexible and reduce the problem of type conversion.

Use asynchronous methods: Asynchronous methods can improve program performance and avoid program blocking.

Using code comments: Code comments can make the code more readable and easy to understand. However, it is necessary to note that the content of the comments should be accurate and clear.

Using Code Refactoring Tools: Code Refactoring Tools can help us quickly refactor code and reduce redundancy and duplication in code. In short, elegant code should be concise, easy to read, easy to understand, efficient and maintainable.

Here are some C# code examples that use the above optimization techniques:

Use LINQ instead of loops and conditional statements:

// Circularly traverse the list and filter out items that meet the criteriaList<int> list = new List<int>() { 1, 2, 3, 4, 5 };
List<int> newList = new List<int>();
foreach (int num in list)
{
    if (num % 2 == 0)
    {
        (num * 2);
    }
}
// Use LINQ to achieve the same functionList<int> newList = (num => num % 2 == 0).Select(num => num * 2).ToList();

Use lambda expressions:

// Use anonymous methodList<int> list = new List<int>() { 1, 2, 3, 4, 5 };
(delegate (int num)
{
    (num);
});
// Use lambda expression(num => (num));

Use the var keyword:

// Don't use the var keywordList<string> list = new List<string>();
Dictionary<string, int> dict = new Dictionary<string, int>();
// Use the var keywordvar list = new List<string>();
var dict = new Dictionary<string, int>();

Use the property accessor:

// Don't use property accessorprivate string name;
public string GetName()
{
    return name;
}
public void SetName(string value)
{
    name = value;
}
// Use the property accessorpublic string Name { get; set; }

Using generics:

// Don't use genericsList list = new List();
(1);
("two");
();
// Use genericsList<int> list = new List<int>();
(1);
//("two"); // Compile error// (); // Compilation error

Use the asynchronous method:

// Synchronization methodpublic void DoWork()
{
    // Perform time-consuming operations    (5000);
}
// Asynchronous methodpublic async Task DoWorkAsync()
{
    await (() =>
    {
        // Perform time-consuming operations        (5000);
    });
}

Use code comments:

// No comments are usedpublic int Multiply(int x, int y)
{
    return x * y;
}
// Use comments/// <summary>
/// Used to calculate the product of two numbers/// </summary>
/// <param name="x">First number</param>/// <param name="y">Second number</param>/// <returns>Product</returns>public int Multiply(int x, int y)
{
    return x * y;
}

Use code refactoring tools:

Using the refactoring function that comes with Visual Studio, you can quickly rename variables, extract duplicate code, abstract methods, etc.

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