This tutorial will guide you through building a RESTful API using Node.js, Express.js, and MongoDB. We’ll cover setting up your environment, defining API endpoints, and handling data persistence. By the end, you’ll have a functional API ready for expansion. Table of Contents Introduction to REST APIs and MongoDB Setting up…
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Mastering call() and send() in Ruby
Table of Contents What is call() in Ruby? What is send() in Ruby? Practical Applications of call() and send() Conclusion FAQ What is call() in Ruby? The call() method, also known as the “call method” or “callable method,” allows you to invoke a method on an object using the method…
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Mastering call() and send() in Ruby
Table of Contents What is call() in Ruby? What is send() in Ruby? Practical Applications of call() and send() Conclusion FAQ What is call() in Ruby? The call() method, also known as the “call method” or “callable method,” allows you to invoke a method on an object using the method…
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Understanding %i and %I in Ruby
Table of Contents What’s the Difference Between %i and %I in Ruby? When to Use %i vs. %I Best Practices Common Questions What’s the Difference Between %i and %I in Ruby? In Ruby, both %i and %I are array literals used to create arrays of symbols. Symbols are lightweight, immutable…
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Understanding Short-Circuit Evaluation in Python
Table of Contents Logical Operators in Python What is Short-Circuiting? Short-Circuiting with the and Operator Short-Circuiting with the or Operator Practical Applications and Considerations Logical Operators in Python Python’s logical operators, and and or, are fundamental for controlling program flow and evaluating conditions. They operate on boolean values (True/False), but…
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Mastering String Delimiters in Ruby: The %q Method
Table of Contents What is %q in Ruby? Examples of Using %q Benefits of Using %q When to Use %q Comparing %q and %Q Other String Delimiters in Ruby Conclusion What is %q in Ruby? Ruby provides several ways to define strings. The %q delimiter offers a clean and readable…
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Mastering Concurrency in MongoDB
MongoDB, a NoSQL document database, offers a unique approach to concurrency control that differs significantly from traditional relational databases. Instead of relying on coarse-grained locks at the table or row level, MongoDB employs a more granular, operation-level locking mechanism. This design choice allows for higher concurrency and improved performance, particularly…
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Mastering MongoDB with Object-Document Mapping
Table of Contents Object-Document Mapping (ODM) ODMs in MongoDB Popular MongoDB ODMs Choosing the Right ODM Conclusion Object-Document Mapping (ODM) Object-Document Mapping (ODM) is a programming technique that simplifies database interactions by mapping objects in your application code to documents in a NoSQL database like MongoDB. Unlike Object-Relational Mapping (ORM),…
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Setting Up and Securing MySQL on Raspberry Pi
This guide provides a comprehensive walkthrough of setting up MySQL on your Raspberry Pi, creating a database, and securing your setup. MySQL is a robust open-source relational database management system (RDBMS), ideal for managing data in various Raspberry Pi projects. Table of Contents Installing MySQL Server on Raspberry Pi Securing…
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Setting Up a Raspberry Pi as a Network File Server
Setting up a Raspberry Pi as a network file server offers a cost-effective and energy-efficient solution for sharing files across your home network. This guide provides a step-by-step tutorial for creating a Samba-based file server accessible from both Windows and Linux machines. Table of Contents Prerequisites Installing Samba Configuring Samba…