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OpenStack Tutorial – Operate Your Own Private Cloud (Full Course)

OpenStack is an open source software that provides cloud infrastructure for virtual machines, bare metal, and containers. In this article, you will learn how to use OpenStack to operate your own private cloud. By the end of the tutorial, you will have a core understanding of what OpenStack is and

URL: https://bit.ly/3NYoJAR
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The Most Asked TypeScript Questions on StackOverflow – Answered for Beginners

"I hate stack overflow" — said no developer ever. While it’s helpful to have your answers a Google search away, what’s even more powerful is truly understanding the solutions you stumble upon. In this article, I’ll explore the seven most stackoverflowed TypeScript questions. I spent hours researching these. I hope

URL: https://bit.ly/3OXzBA8
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JavaScript Check if Undefined – How to Test for Undefined in JS

An undefined variable or anything without a value will always return "undefined" in JavaScript. This is not the same as null, despite the fact that both imply an empty state. You'll typically assign a value to a variable after you declare it, but this is not always the case.

URL: https://bit.ly/3yXwliJ
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JavaScript String Format – Formatting Strings in JS

JavaScript has many string methods you can use to format strings. In this article, I'll show you some of the most commonly used methods. How to Use the toLowerCase() String Method As the name implies, you use the toLowerCase() string method to convert strings to their lowercase version. This method

URL: https://bit.ly/3yZDnUh
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How to Get Started with Node.js – Beginner's Guide to Node

Node.js is a JavaScript runtime that extends its capability to the server-side. It is built on Chrome’s V8 JavaScript Engine. Node is an event-driven, non-blocking IO model. This means it's asynchronous, and doesn't block itself for one request (but rather immediately moves to the next request). This makes Node

URL: https://bit.ly/3ABOFPI
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How to Create an Automated Pull Request Checklist in GitHub

If you've ever contributed to a project, whether it's your app at work or an open-source tool, you've likely created a pull request. This requests that your code changes to merged into the main codebase. We use pull requests to ensure only quality code is merged into our main branches.

URL: https://bit.ly/3AJxsns
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How to Schedule a Job in PostgreSQL

Scheduling allows you to automate things so you don't have to do them in real time. In this article we will see how to schedule a job in PostgreSQL. We'll use pgAgent, a job scheduling agent for PostgreSQL. How to Install PostgreSQL and Stack Builder You can install pgAgent with

URL: https://bit.ly/3P6nMrE
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How to Use Git and GitHub – Version Control Basics for Beginners

A Version Control System is a tool you use to track, make, and manage changes to your software code. It's also called source control. A version control system helps developers store every change they make to a file at different stages so they and their teammates can retrieve those changes

URL: https://bit.ly/3Rti70g
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Population vs Sample – Statistics Example

When working with data sets and conducting a statistical analysis, you need to ensure that the data set you are using is relevant, valid, and correct. The appropriate data will help you make sure that you have a correct outcome and come to an effective conclusion and solution that solves

URL: https://bit.ly/3c8WhPv
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With Open in Python – With Statement Syntax Example

The Python programming language has various functions and statements for working with a file. The with statement and open() function are two of those statements and functions. In this article, you will learn how to use both the with statement and open() function to work with files in Python.

URL: https://bit.ly/3AMdxV6
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List indexOf for Python? How to Get the Index of an Item in a List with .index()

There are various techniques that we can use to get the index of a list item in Python, such as the enumerate() function, a for loop, and the index() method. In this article, we'll focus on how to get the index of an item in a list using the

URL: https://bit.ly/3c8B5t0