When coding in Python, you can often anticipate runtime errors even in a syntactically and logically correct program. These errors can be caused by invalid inputs or some predictable inconsistencies. In Python, you can use the try and the except blocks to handle most of these errors as exceptions all
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You might have heard of a CSV file but what does it mean? In this article, we are going to learn what a CSV file is, and how to open and export them using Microsoft Excel and Google Sheets. What is a CSV file? CSV stands for Comma Separated Values.
Freelancing can be an incredibly rewarding way to make money online. But it can also be quite difficult if you don’t approach it in the right way. It takes more than a stable internet connection to make a living as a freelancer. In order to make the big bucks, you’
In Web Development, REST APIs play an important role in ensuring smooth communication between the client and the server. You can think of the client as the front end and the server as the back end. Communication between the client (frontend) and the server (backend) isn’t usually super direct. So
I’ve lately been noticing a pattern in React applications: developers protect certain routes on a web app from unauthorized users. In such cases, the navigation item (nav-item) on the navigation bar/Header of the web won’t be visible to an unauthorized user. In this short guide, we’re going to take
Modern web applications usually perform more than one function. They often have more than one section, offer more than one service, and have a couple of clients. But the more functionality the app has, the clumsier your route paths will get. What if there was a way to separate all
Blockchain engineers are in extreme demand. Almost every day they are building billion dollar applications. We just released a full course on the freeCodeCamp.org YouTube channel that will teach you all about Solidity, the blockchain, and smart contracts. Solidity is an object-oriented programming language for writing smart contracts. This
Are you preparing for coding interviews? I designed a crash course series to help you out. I’m Lynn, a software engineer and a recent graduate from the University of Chicago. This is the third course in my Coding Interview Crash Course Series. Feel free to check out my YouTube channel,
If you’re curious about graph databases and how they compare with relational database management systems, then this beginner-friendly guide is for you. In this article, you’ll discover of the power of graphs by working with a small movie data set. It is based on the built in dataset and guide
In this article, we will explore what middleware is in Redux, why it’s used, and how you can create your own middleware from scratch. So let’s get started. What Is Redux Middleware?Redux Middleware allows you to intercept every action sent to the reducer so you can make changes to