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How to Pass Command Line Arguments to a Node.js Program
Introduction Node.js is a powerful JavaScript runtime environment that allows developers to create server-side applications. It is often used to create web applications, but it can also be used to create command line applications. One of the most useful features of Node.js is the ability to pass command line arguments to a program. This allows…
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A Detailed Guide to Store Objects in HTML5 localStorage and Alternatives
Introduction HTML5 localStorage is a powerful tool for storing data on the client side. It allows developers to store data in the browser and access it later, even after the browser has been closed. This makes it an ideal solution for storing user preferences, session data, and other types of data that needs to be…
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Creating Sleep Function in Modern JavaScript
Introduction JavaScript is a powerful language that can be used to create a variety of applications. One of the most useful features of JavaScript is the ability to create a sleep function. A sleep function allows a program to pause for a specified amount of time before continuing. This can be useful for creating animations,…
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Understanding JavaScript Closures Inside Loops
What is a JavaScript Closure? A JavaScript closure is an inner function that has access to the outer (enclosing) function’s variables—scope chain. The closure has three scope chains: it has access to its own scope (variables defined between its curly brackets), it has access to the outer function’s variables, and it has access to the…
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JavaScript ES6 vs Old JavaScript: What’s the Difference?
Introduction JavaScript is one of the most popular programming languages in the world. It is used to create interactive web pages and applications. JavaScript has been around for a long time, and it has gone through several major updates over the years. The latest version of JavaScript is ES6, which was released in 2015. In…
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JavaScript ES6 (ECMAScript 6) Most Used Tricks and Tips
Introduction to JavaScript ES6 JavaScript ES6 (ECMAScript 6) is the version of the JavaScript language. It was released in 2015 and is now widely used in web development. ES6 brings many new features and improvements to the language, making it easier to write and maintain code. In this article, we will look at some of…
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Pretty-Printing JSON in a Shell Script
Introduction Pretty-printing JSON in a shell script is a great way to make your output more readable and easier to understand. It can also help you debug your code more quickly and accurately. In this article, we’ll look at how to pretty-print JSON in a shell script using the jq command-line tool. Using jq to…
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Cloning a JavaScript Object: A Step-by-Step Guide
What is Cloning a JavaScript Object? Cloning a JavaScript object is the process of creating a copy of an existing object. This is useful when you want to make changes to an object without affecting the original object. Cloning an object is also known as deep copying, as it creates a new object with all…
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Testing for an Empty JavaScript Object
What is an Empty JavaScript Object? An empty JavaScript object is an object that has no properties or methods. It is an empty container that can be used to store data. It is also known as an empty object literal. How to Test for an Empty JavaScript Object There are several ways to test for…
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What is the Difference Between Docker and a Virtual Machine?
Introduction Docker and virtual machines are two popular technologies used for virtualization. Both technologies are used to create virtual environments for applications, but they have some key differences. In this article, we will discuss the differences between Docker and virtual machines and how they can be used in different scenarios. What is Docker? Docker is…