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JavaScript allows developers to create and manipulate style tags in order to change the appearance of a webpage. By using the document.createElement() method, the .sheet property, and the .insertRule() and .deleteRule() methods, we can add, modify, and remove CSS rules from a stylesheet. By combining these techniques with event listeners, we can create dynamic and interactive web pages that can change their appearance in response to user interactions. One of the most powerful features of JavaScript is the ability to manipulate the DOM, which is the structure of a web page. One way to manipulate the DOM is by creating ... Read More
The hot tub and jacuzzi are used for relaxation, recreation, and hydrotherapy. These two fall under the category of spas. Jacuzzi is a manufacturer of hot tubs. A hot tub can also help with muscle aches and pains. Jacuzzi refers to specific hot tubs that are equipped with water jets for relaxation and recreation. Hot tubs refer to a pool of hot water or any tub that is used for relaxation and doesn't have any water jets. Materials such as wood, concrete, and acrylic wood are used for making the jacuzzis and hot tubs. Hot tubs and jacuzzis contain different ... Read More
SDLC is a character-oriented protocol and HDLC is bit-oriented; this is where the two protocols diverge the most. The fault detection capability, dependability, and speed of HDLC and SDLC are different. The data is divided into bits in HDLC before being sent over the network, whereas characters are divided into bits in SDLC. Another difference between the two standards is the use of an escape character by HDLC, as opposed to SDLC, to indicate when the bit stuffing method should be used. HDLC is thought to be a suitable superset of SDLC. HDLC and SDLC share the same frame format. ... Read More
Closures, Symbols, WeakMaps, class private fields, and Proxies are a few techniques that can be used to create a private variable in JavaScript. Every technique has benefits and drawbacks, so it's crucial to pick the one that best suits your requirements. Like many other programming languages, JavaScript has the idea of private and public variables. Private variables can only be accessed and changed by code that is also part of the same scope, but public variables can be accessed and changed by any code. Let’s look at the different techniques to create a private variable in JavaScript. Using ... Read More
Promise rejection handlers are a powerful tool in JavaScript for handling errors that occur in asynchronous code. In this article, we will learn how to build a global promise rejection handler in JavaScript and how it might assist your application manage errors. You can detect unhandled promise rejections using the global unhandledrejection event and take the necessary action, like logging the problem to an error tracking service or showing the user a notice. A more understandable and simpler syntax for handling promise rejection is provided by error handling with async-await, but it necessitates that you wrap each async function ... Read More
Creating a function from a string in JavaScript can be helpful in situations when you need to generate a function dynamically at runtime or when you have a string that contains the code for a function you wish to execute. The ability to construct a function from a string is a useful functionality of JavaScript that allows dynamic function creation at runtime. The eval() function and the new Function() function Object() [native code] are the two most popular methods for doing this, although both have significant security flaws. The Function.prototype.constructor is a safer option even though it is ... Read More
There are many ways to convert a plain object into an ES6 Map in JavaScript. The simplest and most effective way is using the Object.entries() function and the Map() constructor. In contrast, the more flexible alternatives include Object.keys() and Array.prototype.forEach() and the for...in loop and Map() function method. A Map in ES6 is a collection of key-value pairs. Here we can use any type of object as a key, including primitive data types like strings and numbers. The values in the map can be any type of object. The main difference between a Map and an object is that ... Read More
Converting pixel values to number values in JavaScript is a simple task that can be accomplished using built-in functions such as parseInt(), parseFloat(), Number() and also string method replace(). Each method has its own advantages and disadvantages and the best method to use will depend on the specific requirements of your project. When positioning and styling items on a web page, it's sometimes required to work with both pixel and numeric values in web development. To execute computations or operations on a value, for instance, you might need to convert a pixel value, such as "100px, " to a ... Read More
Hard Drive and Memory are both used for the same purpose of storing data. For long-term data retention, we need to use the Hard Drive storage device. On the other hand, the memory storage device is used for short-term data retention. Hard Drive or HDD is slower than the memory but it stores more data. Memory or RAM (Random Access Memory) is faster as compared to the Hard Drive but data will be lost when the power supply is switched off. Read this article to find out more about Hard Drive and Memory and how they are different from each ... Read More
GoFlex and FreeAgent are two models of external hard drives by Seagate. GoFlex has 2 terabytes of storage capacity, while FreeAgent has 1.5 terabytes. GoFlex is an older model, while FreeAgent is an entirely new edition. In GoFlex, you may add more adapters than in Free Agent. GoFlex is a family storage drive that is simple to use and plug and play. It is connected to cables to provide speed and performance; presently, it is also kept in the interface based on customer multimedia streaming and personal libraries. Go Flex hard disc drive (HDD) may be turned into a ... Read More