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In the realm of electronics and time measurements, you encounter terms like milli, micro, nano, and pico quite often. But what do they actually signify? This blog post aims to provide a convenient reference to understand the meaning of each of these terms. Let’s dive right in: Milli: Represented as 10^-3 or 0.001, milli serves as a prefix indicating one thousandth of a unit. Micro: Denoted as 10^-6 or 0.000001, micro signifies one millionth of a unit....

Learn the fundamentals of working with mouse events in JavaScript to enhance your interactivity with users. Mouse events play a crucial role in web development as they allow us to interact with the mouse and perform various actions. Let’s explore the different types of mouse events that JavaScript provides: mousedown: This event occurs when the mouse button is pressed down. mouseup: It is triggered when the mouse button is released. click: A single click event that is fired after a mousedown and mouseup event....

When working with npm packages, it’s important to understand the difference between dependencies and devDependencies. Knowing when to classify a package as a dependency or a dev dependency will help optimize your project’s setup. Dependencies When you run npm install <package-name>, the package is installed as a dependency. It is automatically added to the dependencies list in your package.json file. Previously, you had to manually specify --save to include it in the dependencies....

In the world of Swift programming, numbers play a crucial role. They allow us to perform mathematical calculations and represent various data types. In this tutorial, we will explore the two main types of numbers in Swift: Int and Double. We will also discuss other numeric types and how to convert between them. Integers: Int An Int in Swift represents a whole number without a decimal point. It is used to store values such as counts, indices, or any other quantity that can be expressed as a whole number....

Introduction In JavaScript, object destructuring is a powerful feature that allows you to extract specific properties from an object and assign them to individual variables. This can make your code more concise and readable by eliminating the need for repetitive object property access. How Object Destructuring Works Consider the following example: const person = { firstName: 'Tom', lastName: 'Cruise', actor: true, age: 57 }; To extract specific properties from the person object and assign them to variables, you can use object destructuring:...

In the package.json file of some Node modules, you might come across a field called peerDependencies. While you may be familiar with dependencies and devDependencies, peerDependencies is slightly different. Dependencies: These are the packages that your project relies on. DevDependencies: These are the packages that are necessary during the development phase, such as testing frameworks like Jest or utilities like Babel or ESLint. When you install a package using npm, both the dependencies and devDependencies are automatically installed....

Discovering the meaning and purpose behind network ports. When conducting network requests, the utilization of an IP address or a host name in conjunction with a port is essential. To illustrate: http://localhost:8080 (port 8080) ftp://127.0.0.1:29392 (port 29392) But what exactly is a port? In networking, a port is a crucial concept that allows multiple applications to respond on the same computer within the same protocol. For instance, it is possible to have two web servers running simultaneously on a single machine, each assigned to a different port....

When it comes to understanding the event loop in Node.js, one crucial aspect to grasp is the process.nextTick() function. Each time the event loop completes a cycle, it is referred to as a tick. With process.nextTick(), we can instruct the engine to execute a given function at the end of the current operation, just before the next tick of the event loop begins. Here’s an example of how to use process....

JavaScript stands out among popular programming languages because of its unique usage of prototypal inheritance. In this article, we will dive into the concept of prototypal inheritance and how it differs from the traditional class-based inheritance model used in most object-oriented languages. What is Prototypal Inheritance? In JavaScript, every object has a property called prototype which points to a different object. This different object is known as the “object prototype”. The object inherits properties and methods from its prototype....

In Python, everything is an object, including values of basic primitive types such as integers, strings, and floats. Objects in Python have attributes and methods that can be accessed using the dot syntax. Let’s start by looking at an example. Suppose we define a new variable age of type int: age = 8 Now age has access to the properties and methods defined for all int objects. For instance, we can access the real and imaginary parts of this number using the real and imag attributes:...