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keyerror in Python – How to Fix Dictionary Error

When working with dictionaries in Python, a KeyError gets raised when you try to access an item that doesn't exist in a Python dictionary. Here's a Python dictionary called student: student = { "name": "John", "course": "Python", } In the dictionary above, you can access the

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