Data Structure
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We use network topologies to connect different nodes, links, or devices in a computer network. In this article, we will discuss types of network topologies: Tree Topology and Bus Topology. We will discuss what is network topology, types of network topology and difference between Tree Topology and Bus Topology. Types of Topology Network topology connects different devices in a network. We control connections and data transmission between devices in the network. There are various types of network topologies in the computer network as given below - Point to Point Topology Mesh Topology ... Read More
A common task on computers is refreshing a webpage or application to get the latest content or to resolve minor glitches. If you've recently switched to a Mac from a Windows PC, you may be wondering how to refresh on a Mac since it doesn't have an F5 key, which is typically used on Windows systems. In this guide, we’ll explore different ways to refresh on a Mac, whether it’s a webpage, desktop, or application. 1. How to Refresh a Webpage on a MacRefreshing a webpage on a Mac is straightforward. Here’s how you can do it using different methods: ... Read More
In this article we will discuss about database management system (DBMS) and spreadsheet. We will discuss what is database, what is spreadsheet and their advantages and disadvantages. We will also discuss their applications and difference between DBMS and spreadsheet. What is Database Management system (DBMS)? DBMS is a software. We use it manage and organize data in a structured manner. We can create, update, delete and query from the database. We store data in form of tables inside database. There are different types of software available as DBMS, i.e., MySQL, PostgreSQL, SQL server, etc. Features of DBMS These are importance features as given below ... Read More
When building web applications, you may notice that clicking on buttons often leaves an outline or "focus ring" around them. This can be helpful for accessibility, but sometimes it's not desirable for specific designs. In this article, we’ll explore several ways to remove the focus ring from buttons when they are clicked, without sacrificing accessibility for keyboard users. Approaches to Remove Focus Around Buttons on Click Using JavaScript addEventListener Method Using CSS Pseudo Class Using JavaScript addEventListener Method ... Read More
JavaScript does not have a specific attribute protection level like the one that exists in some other languages, but we can come close using a few techniques. Protected properties are those that are accessible only to certain methods of an object and are not exposed to outside access. This idea is helpful when securing information against illegitimate access since only specific functions or methods can read or alter it. Approaches to Create Protected Object Properties Using Closures Using WeakMap Using Closures Closures in JavaScript can encapsulate properties and ... Read More
It is often necessary to change JSON data into Excel sheet, especially when exporting and reporting is concerned, in various web applications. Data is presented and analyzed with the help of the widely spread Excel files, and the transformation of the JSON data to excel enables the users to do analysis and manage data seamlessly. This paper looks at different ways of converting JSON data to Excel files in JavaScript environment through the use of libraries and through other manual means. Approaches to Convert JSON to Excel in JavaScript Using the SheetJS (xlsx) library ... Read More
As we know, both Java and JavaScript are programming languages and are used in application development. But there are significant differences between the languages, which we will discuss below. Java Java is a high-level language that is also a platform-independent language. It is mainly used in the development of web applications, mobile applications, games, etc. Java is a statically typed language, which means that the code must be checked for errors before it runs. JavaScript whereas JavaScript is a dynamically typed language, which means that the code is checked for errors while it runs. JavaScript is a client-server-side language, which ... Read More
Both Servlets and JSP are used in web development. The Servlets handle the logic (processing our requests and interacting with databases), and JSPs handle the presentation (displaying dynamic content on the web page). By separating the logic and presentation, our web applications become more manageable and scalable. In brief, we can think of Servlets as Java programs that run on a web server. They work as the middle layer between a request from an HTTP client (like a browser) and databases or applications on the server. When we send a request to a server, the Servlet processes that request, and ... Read More
Users can not directly use if/else condition in CSS. For conditional styling in CSS, we have to use alternatives of if/else condition. We will be understanding three different alternate ways to use conditional styling in CSS. In this article, our task is to implement if/else condition in CSS. Since if/else condition is not supported in CSS, we will be understanding its alternate approaches. Approaches for Using Conditional Styling in CSS Here is a list of approaches for using conditional styling in CSS which we will be discussing in this article with stepwise explanation and complete example codes. ... Read More
Centering the middle item in a layout while ensuring it doesn’t move if other items are removed is a common design challenge, this article explores ways to center the middle item using CSS techniques that maintain its position even if adjacent elements are absent. Using Flexbox with Absolute Centering Flexbox offers a straightforward way to center an item within a container. By setting the middle item to have margin property set to auto, it remains centered without depending on adjacent items. Example Code ... Read More