Simple Code Snippets

Examples tagged with #fundamentals

How to use async and await in C#

#async #fundamentals

When to Use async/await vs Task.Run in C#

#async #fundamentals #performance

C# casting and type conversion — explicit cast, as, is, Convert, implicit

How to check if string is null or empty

#fundamentals #strings

C# checked and unchecked — integer overflow explained

#fundamentals #performance

C# collections guide — List, Array, Dictionary, HashSet, Queue, Stack

#collections #fundamentals #performance

When to Use const vs readonly in C#

#fundamentals #types

How to convert int to enum in C#

#fundamentals #enums #types

How to convert string to int in C#

#fundamentals #types

C# DateTime Format Examples: yyyy-MM-dd, ISO 8601, and More

#fundamentals #datetime

C# DateTime.ToString Format Cookbook

#fundamentals #datetime

Delegates, lambdas, Func, and Action in C#

#fundamentals #modern-csharp

C# Dictionary: Add, Update, Find, and Iterate (With Examples)

#collections #fundamentals

When to Use Dictionary vs Hashtable in C#

#collections #fundamentals

C# enum guide — declare, iterate, Flags, and convert to string

C# events — EventHandler, custom EventArgs, raise and subscribe to events

#fundamentals #oop

C# Exception Handling — throw, custom exceptions, and exception filters

#fundamentals #error-handling

When to Use foreach vs for Loop in C#

#fundamentals #loops #performance

How to generate random numbers in C#

#fundamentals #random

C# Generics — generic classes, methods, and constraints explained

#fundamentals #generics

C# GUID.Empty Explained — Empty, Default, and New Guid()

#fundamentals #strings

C# GUID: Generate, Parse, Format, and Compare GUIDs

#fundamentals #strings

C# GUID Parse and Format Reference

#fundamentals #strings

When to Use HashSet vs List in C#

#collections #fundamentals #performance

When to Use IEnumerable vs IQueryable in C#

#linq #collections #fundamentals

When to Use Interface vs Abstract Class in C#

#oop #fundamentals #design-patterns

C# interfaces — define, implement, explicit implementation, and interface vs abstract class

#fundamentals #oop

How to Join Strings in C#

#fundamentals #strings

How to Check if a List is Empty

#collections #linq #fundamentals

When to use List vs Array in C#

#collections #fundamentals

How to use the null coalescing operator in C#

#fundamentals #operators

How to use nullable reference types in C#

#fundamentals #types

C# nullable types — int?, Nullable<T>, null handling patterns

#fundamentals #null-safety

When to use Parse vs TryParse in C#

#fundamentals #types

Pattern Matching in C# — is, switch, property, and list patterns

#fundamentals #modern-csharp #patterns

C# properties — get, set, init, auto properties, and computed properties

#fundamentals #oop

C# Random Number Guide: Random.Shared, Random.Next, and RandomNumberGenerator

#fundamentals #performance

How to Read a Text File

#file-io #fundamentals

C# record types — record vs class, with expressions, and immutability

#fundamentals #modern-csharp

When to Use ref vs out Parameters in C#

#fundamentals #methods

C# Stack and Queue — push, pop, enqueue, dequeue, and when to use each

#collections #fundamentals

C# string[] vs List<string>: Which Should You Use?

#collections #fundamentals

How to compare strings in C# — ==, Equals, StringComparison, OrdinalIgnoreCase

#strings #fundamentals

string.Format in C# — Syntax, Format Specifiers, and Examples

#strings #fundamentals

How to Use String Interpolation in C#

#fundamentals #strings

C# string methods cheat sheet — Contains, Split, Replace, Trim, and more

#strings #fundamentals

What is the difference between String and string in C#

#fundamentals #types

How to use StringBuilder in C#

#fundamentals #strings

When to Use Struct vs. Class

#fundamentals #types #oop

How to Use Switch Expressions in C#

#fundamentals #patterns

Task.WhenAll, Task.WhenAny, and Task.Run in C#

#async #fundamentals #performance

How to use try catch finally in C#

#fundamentals #exceptions

When to Use Tuple vs ValueTuple in C#

#fundamentals #types

When to Use var vs Explicit Types in C#

#fundamentals #best-practices

What is BOM Character in C#

#fundamentals #strings #file-io

Write Special Characters to a File in C#

#file-io #fundamentals

How to Write to a Text File in C#

#file-io #fundamentals