For starters one might ask why would anyone want to switch CORS off?
Cross-Origin Resource Sharing (CORS) is a part of HTTP header that indicate any origins (domain, scheme, or port) other than its own from which a browser should permit loading resources.
It’s security measure against plenty of web attack vectors. In simple terms CORS (Cross-Origin Resource Sharing) mean you can’t get web resource from different domain, only from the same domain from which your original resource is loaded. Practically, if your web page is on domain xy.com then some JavaScript inside your page will only be allowed to get resources from xy.com. But what if you still want CORS switched off?

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This article will take you into the world of JavaScript errors. Errors happen no matter what, no matter how extraordinary a coder you are, no matter how closely you pay attention, no matter how good you are at predicting a user’s behavior. In JavaScript, your scripts will have errors. And there are a hundred possible reasons for that. However, there is a solution to discovering these errors, and that solution comes in a form of a catch clause through a try statement.
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This article will teach you all you need to know about the case clause in JavaScript. To begin with, the case clause is very closely connected to the switch statement and cannot stand alone. This is the main reason during this article we are going to discuss the cause clause in conjunction with the switch keyword. In general, the if-else statements are the simplified version of the conditional operations, however, when dealing with more complex conditional operations, the switch case statement comes into play, and the break keyword is also often a part of the story.
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The break is one of the reserved keywords in JavaScript and we often associate it with when wanting to break the loop. This article is going to present some theoretical basics that are necessary to understand the break statement and some of the most common examples of break statement applications. For a beginning, let’s take a look at the official definition, and afterward we will take each part of it, explain how it works, and see for ourselves through examples.
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arguments is a reserved keyword in JavaScript. Arguments is an array-like object that you can access inside all non-arrow functions. That object contains the values of the arguments that are passed to that function. arguments object is a local variable available within all non-arrow functions.

Let’s take a look at that definition step by step.

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Linux is open source operating system which means anyone can read and modify its source code. During time developers modified original Linux system source code to some point where they presented it as something totally new. That’s why there is so many different Linux systems(distributions) today. However many so called “distributions” are actually not so different from original. For the sake of installing applications(packages in Linux terms) there are two main package managers and these are Yum for Red Hat based Linux distributions and Apt for Debian based distributions. We can say that the most of the Linux distributions are based on one of these two. Lets see how they work and what other methods we have available for installing applications in Linux.

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You can usually start with Linux without even going through the process of installing it. There are plenty of cloud providers (Google Cloud, Microsoft Azure, AWS) that offer free plans with preinstalled Linux instance on their hardware so you just have to open account with them and you will get remote access to Linux command line. Linux command line is called shell and while there are different shells you can use the most common is Bash. So let’s see what you can do with it from the perspective of Linux beginner.

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Have you ever wondered why you were able to call a function before you wrote it? If this is the case, this article is going to answer this question! We are going to dig into one of the basic concepts in JavaScript – we are going to teach you what is hoisting in JavaScript and why it’s important. Let’s get started!
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In this article, we are going to teach you, step by step, how you can create a very simple single page application. We are going to create it by showing and hiding div elements. SPA means we have single DOM page and using JavaScript we simulate multi page website by showing and hiding elements. Other option, which we are going to explore in another tutorial, is to create elements we need for a “page” and delete elements we don’t need at some point. You will need just a little knowledge of HTML, CSS, and some very basics of JavaScript. We will also embed code example, which will present this single page application and we will go through each line of code and each section so you can see exactly what we are doing. If you’ll go through the example, you will also notice some comments in the code, which will probably add another dimension for you to clarify things that are unclear. Let’s get started.

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It is super important to understand basic concepts of JavaScript and scope is definitely one of them – you cannot work in JavaScript, if you don’t understand what scope is and this is the main reason we prepared this article.
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