Section 1.1: Object Initialization Syntax

This snippet streamlines the creation of an object along with its property initialization.

public class Product

{

public string Name { get; set; }

public decimal Price { get; set; }

}

var product = new Product

{

Name = "Laptop",

Price = 999.99M

};

Section 1.2: Enumerable.Range Method

Use Enumerable.Range to generate a series of numbers, which is particularly handy when you need to loop a specific number of times without manually managing the counter.

foreach (var number in Enumerable.Range(1, 10))

{

Console.WriteLine(number);

}

Section 1.3: Conditional Ternary Operator

This snippet provides a compact way to conduct quick conditional evaluations.

int time = 20;

var result = (time < 18) ? "Good day." : "Good evening.";

Console.WriteLine(result);

Section 1.4: Task.WhenAll Method

Leverage Task.WhenAll to execute multiple tasks simultaneously and wait for their completion.

async Task DownloadAllAsync(List<string> urls)

{

var tasks = urls.Select(url => DownloadAsync(url)).ToArray();

await Task.WhenAll(tasks);

}

async Task DownloadAsync(string url)

{

Console.WriteLine($"Downloading from {url}");

}

Section 1.5: String Interpolation

String interpolation makes it easy to include variables in string literals for clearer and more maintainable code.

var name = "John";

var age = 30;

Console.WriteLine($"Hello, my name is {name} and I am {age} years old.");

Section 1.6: Null-Conditional Operator

Safely access properties of potentially null objects to avoid NullReferenceException.

string firstName = person?.FirstName ?? "Unknown";

Console.WriteLine(firstName);

Section 1.7: LINQ Query Syntax

Utilize LINQ to elegantly query collections of data.

var scores = new int[] { 90, 100, 82, 89, 92 };

var highScores = from score in scores

where score >= 90

select score;

foreach (var score in highScores)

{

Console.WriteLine(score);

}

Section 1.8: Using Statement

Automatically manage resource disposal with the using statement to ensure no resources are left unhandled.

using (var streamReader = new StreamReader(@"C:file.txt"))

{

string content = streamReader.ReadToEnd();

Console.WriteLine(content);

}

Section 1.9: Expression-Bodied Members

This syntax simplifies method or property definitions that consist of a single statement.

public class Person

{

public string FirstName { get; set; }

public string LastName { get; set; }

// Expression-bodied member

public string FullName => $"{FirstName} {LastName}";

}

Section 1.10: Dictionary Initialization

Easily initialize dictionaries using collection initializer syntax for more concise code.

var capitals = new Dictionary<string, string>

{

["USA"] = "Washington, D.C.",

["Japan"] = "Tokyo",

["France"] = "Paris"

};

These snippets illustrate just a fraction of the capabilities that C# and .NET provide. Mastering these techniques will enable developers to write cleaner, more efficient code, leading to faster development cycles and improved maintenance. Whether you are an experienced programmer or just starting out, these snippets are invaluable additions to your coding arsenal.

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