Knowledge Base

Complete Learning Guides

Master data structures, web technologies, and digital concepts with our comprehensive educational guides. From beginner basics to advanced topics.

10+
Guides
70+
Minutes
3
Levels

Understanding JSON

Beginner 8 min

Master JSON structure, syntax, and patterns. Learn objects, arrays, data types, and nested JSON reading.

Objects Arrays Syntax
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CSV Data Structure

Beginner 6 min

Learn CSV file organization with rows and columns. Understand headers, delimiters, escaping, and common pitfalls.

Delimiters Headers Parsing
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Text Encoding Explained

Intermediate 10 min

Discover how computers represent text. From ASCII to UTF-8, learn character encodings and international text handling.

ASCII UTF-8 Unicode
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Precision & Accuracy

Advanced 7 min

Understand floating-point numbers, rounding errors, and why 0.1 + 0.2 ≠ 0.3. Essential for decimal calculations.

Floating Point Binary Rounding
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RESTful APIs Basics

Intermediate 9 min

Learn REST principles, HTTP methods (GET, POST, PUT, DELETE), status codes, and how APIs exchange data.

HTTP Methods Endpoints Status Codes
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Data Validation Techniques

Intermediate 8 min

Master input validation, sanitization, type checking, and schema validation for secure data handling.

Input Validation Schemas Security
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File Formats Comparison

Beginner 7 min

Compare JSON, CSV, XML, and YAML. Learn when to use each format and their pros and cons.

JSON vs CSV XML YAML
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Regular Expressions Mastery

Advanced 12 min

Master pattern matching with regex. Learn syntax, common patterns, and practical applications for text processing.

Pattern Matching Metacharacters Groups
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HTTP Headers Guide

Intermediate 8 min

Understand HTTP request and response headers. Learn about content types, caching, authentication, and CORS.

Content-Type Authorization CORS
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Database Normalization

Advanced 10 min

Learn database design principles, normal forms (1NF to 3NF), and how to structure data efficiently.

1NF/2NF/3NF Keys Relations
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