How Do C# Lambda Expressions Enhance Code Readability and Functionality?

Why should your code library use C# LAMBDA expression

The Lambda expression introduced in

C# 3.0 aroused the curiosity of developers. Although it looks similar to anonymous commission, they provide unique advantages to make them an indispensable tool in the programming tool library.

The simplified anonymous commission

Lambda expression provides a concise syntax for anonymous commission, making the code more concise and clear. Different from anonymous commission that needs to be entrusted separately, Lambda expressions can be defined in the inside without additional steps.

For example, the following anonymous commission grammar:

It can be simplified to use lambda expression to:

<code class="language-c#">delegate int del(int i);
del myDelegate = x => x * x;</code>

The expression tree function

<code class="language-c#">Func<int, int> myDelegate = x => x * x;</code>

Lambda expression is a significant advantage over an anonymous commission that they can be converted into expression trees. The expression tree indicates the abstract syntax tree of Lambda, allowing in -depth analysis and operation. This function is the basis of the functions of LINQ (Language Integration) in C#.

The advantages of traditional methods

Although Lambda expressions and methods can be used as a way to define similar functions, LAMBDA expressions have significant advantages:

Closure:

Lambda expressions can capture the local state around, thereby accessing variables outside its range without adding parameters or creating temporary objects.

LINQ Integration:
• The expression tree generated from Lambda expression is important to convert the C# expression into database query or other operations.
Example: Show the powerful function of linq
• Considering the following linq example of using Lambda expression filtering integer list:

This code uses Lambda expression definition filtering conditions, which is more concise and easy to read than anonymous commission.

The above is the detailed content of How Do C# Lambda Expressions Enhance Code Readability and Functionality?. For more information, please follow other related articles on the PHP Chinese website!