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Dictionary

A Dictionary is a data structure that stores key–value pairs, allowing fast lookup, insertion and deletion using unique keys. Unlike lists or arrays, a dictionary does not rely on indexing; instead, keys provide direct access to values. Dictionaries are widely used for configurations, mappings, caching and structured data storage due to their efficiency and flexibility.

Top Dictionary Articles

SortedDictionary in C# – Beginner to Advanced Guide
Learn how to use SortedDictionary in C# from basics to advanced. Covers syntax, examples, performance and real-world use cases for efficient coding.
How to iterate a Dictionary in C# ?
Learn efficient ways to iterate a Dictionary in C# using loops like foreach, for and LINQ for fast key-value access and better performance in your code.
Dictionary Properties and Methods in c#
Dictionary properties & methods in c# | all c# dictionary methods | dictionary operations | dictionary properties
Dictionary in C#
Dictionary in C# and it's use cases | benifit of using dictionary | dictionary use cases | how to create a dictionary in c#

Popular Topics

DSA
DSA (Data Structures and Algorithms) is a fundamental concept in computer science that focuses on efficiently storing, organizing and processing data. Data structures like arrays, linked lists, stacks and trees manage data, while algorithms provide step-by-step solutions to problems. Mastering DSA is essential for writing optimized, scalable and high-performance code.
String
String is a data type used in most of the programming language. String is a sequence of characters and can contain letters, spaces , symbols ,numbers etc. commonly used for text, though sometimes for arbitrary data.
Git
Git is a distributed version control system used to track changes in code, collaborate with teams and manage project history. It allows developers to work independently on branches, merge updates and revert to previous versions when needed. Git ensures code integrity, supports parallel development, and is widely used in software engineering for efficient source code management and collaboration.
C#
C# (C-Sharp) is a modern, object-oriented programming language developed by Microsoft for building secure, scalable applications. It runs on the .NET platform and supports features like strong typing, garbage collection, LINQ, async programming and cross-platform development. C# is widely used for web, desktop, game development (Unity), cloud services and enterprise-level software solutions.
Java
Java is a high-level object-oriented programming language. it's firstly released by Sun Microsystems in 1995. Use this tag when you're having queries using or understanding the language. This tag is also applicable to Java libraries and frameworks.
Language-Concepts
This tag is used to understand a basic part of the language.
Sorting
Sorting is the process of arranging data in a specific order, typically ascending or descending. It helps improve search efficiency, data organization and overall algorithm performance. Common sorting algorithms include Bubble Sort, Merge Sort, Quick Sort and Insertion Sort. Sorting is widely used in databases, applications and system processes to manage and analyze information effectively.
git branch
git branch is a command used to manage branches within a Git repository. It allows developers to create, list, rename and delete branches. Branches enable parallel development, feature isolation and safe experimentation without affecting the main codebase. Using git branch helps teams organize work efficiently and maintain clean, structured workflows during development.
C# Collection
In C#, Collections are classes in the System.Collections and System.Collections.Generic namespaces that store and manage groups of related objects. They include types like List<T>, Dictionary<TKey,TValue>, Queue<T> and Stack<T>. Collections offer dynamic sizing, built-in search, sorting and iteration, making data handling efficient and flexible in C# applications.
MySQL
MySQL is an open-source relational database management system widely used for storing and managing structured data. It supports SQL for querying, updating and controlling data efficiently. Known for reliability, speed and scalability, MySQL powers web applications, enterprise systems and cloud platforms. It is commonly used with PHP, Java, Python and modern application stacks like LAMP and MERN.
Popular Articles
Learn how to create a primary key in SQL using syntax and examples. Ensure unique records, improve query performance and build table relationships.
namespace in c# | namspace concept in c# | c# namespace | c sharp namespace | what is namesapce and it's use cases | why should we use namespace
Mastering the Template Design Pattern in C#, Template Design Pattern in Depth: Structure, Use Cases and Best Practices
Amazon Transaction Logs (example question), Amazon Transaction Logs Interview question
Top High-Level Design(HLD) Interview Questions and answers, HLD QnA, HLD interview preparation
A Structured Approach to Cracking Technical Interviews. how to prepare for Technical Interviews? Technical Interviews preparation guideline
Length of the Longest Substring Without Repeating Characters | Given a string str find the length of the longest substring without repeating characters | find the length of the longest substring without repeating characters in a given string |
Static Class vs Singleton in C#: A Complete Deep Dive

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