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AWS VPC Tutorial

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The AWS VPC tutorial, including what is Amazon virtual private cloud, ipv4 vs ipv6, subnets, route tables, security, gateways, and examples.

Spring Data JPA Tutorial

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Spring Data JPA tutorial including creating entities, repositories, CRUD operations, entity relationships, setting up the mysql connection and running the application.

How Kubernetes Works | Kubernetes Tutorial

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How Kubernetes works including worker nodes, the control plane, objects, and an overview of Kubernetes architecture and concepts.

What is Kubernetes? | Kubernetes Tutorial

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What is Kubernetes including what's a container, containers and docker, Kubernetes and containers, and is Kubernetes free?

npm update | how it works

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How npm update works, including how to update packages to specific versions, updating dev dependencies, updating package-lock.json, and troubleshooting npm update not working.

npm install | how it works

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The npm install command and how it works with and without arguments. Learn what happens under the hood with dependency resolution and the difference between npm dependencies and devDependencies.

The Ultimate Guide to Lambda Expressions in Java

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Everything you need to know about lambda expressions in Java, including what lambdas are, syntax, reasons for using lambdas, the java.util.function package, lambda scope, examples and more.

MongoDB $lookup in 5 Minutes

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MongoDB $lookup examples including pipeline example, joins, and $lookup with conditions. Quickly understand $lookup aggregations with these examples and explanations

The MongoDB Aggregation Pipeline in 5 Minutes

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The MongoDB aggregation pipeline quickly explained with examples for $match, $group, $sum, $unwind, $project

Learn ReactJS Components

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Everything you need to know about React Components, including what a component is and examples.