Doubtly
@Doubtly · Joined Feb 2021
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- A Explain the Document Object Model using a diagram. Write a code in JavaScript for any one of the following: The Document Object Model (DOM) is a programming interface for web documents. It represents the structure of a document as a tree of objects... 1
- Write a code making use of React Hooks that displays four buttons namely, “Red”, “Blue”, “Green”, “Yellow”. React Hooks are functions that allow functional components to have state, lifecycle methods, and other React features. They were introduced... 1
- Explain Forms and their types with examples Forms are an integral part of any modern web application. It allows the users to interact with the application as well as gather information... 1
- Explain the Component Lifecycle with a neat Diagram Components are the building blocks of React application that represents a part of the user interface. Reusable The React component goes thro... 2
- Difference between Stateful and Stateless Component Feature Stateful Component Stateless Component State Management Maintains state data and can change it over time. Does not maintain state in... 1
- Explain Props. What do you mean by Default props? It is an object which stores the value of attributes of a tag to create reusable custom components. Props are arguments passed into React co... 2
- What is Express Generator? Express Generator is a Node.js Framework like ExpressJS which is used to create express Applications easily and quickly. It acts as a tool f... 1
- Explain Cookies in Express Cookies are simple, small files/data that are sent to the client with a server request and stored on the client side. Every time the user lo... 2
- Explain REPL (READ, EVAL, PRINT, LOOP) REPL (READ, EVAL, PRINT, LOOP) is a computer environment similar to Shell (Unix/Linux) and command prompt. Node comes with the REPL environm... 1
- Compare ES 5 and ES 6. Write a code in JavaScript to validate the email address entered by the user Based on ES5 ES6 Definition ES5 is the fifth edition of the ECMAScript (a trademarked scripting language specification defined by ECMA Inter... 1
- Explain the event handling in React. Write a React code to create a button “Greet the User” Event handling in React allows you to respond to user interactions, such as clicks, form submissions, and mouse movements. React event handl... 1
- What is Express JS? Explain the advantages of using it. Express.js is a web application framework for Node.js, a runtime environment for server-side JavaScript. It simplifies the process of buildi... 1
- Write a JavaScript code for displaying a digital clock on a web page. <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title... 1
- Explain the working of DNS with the suitable diagrams. Clearly explain all the steps involved in DNS resolution. DNS (Domain Name System) translates a host name such as www.example.com into its IP address using a distributed hierarchy of servers (root,... 1
- Important Topics for Semester 3 Exam [CS/AI-DS/AI-ML/CSE] Important Topics for Semester 3 Exam [CS/AI-DS/AI-ML/CSE] MATHS-3 Laplace Transform (L) of standard functions First Shifting Theorem and Sec... 1
- Important Topics for semester Exam Semester 1 ( All Branches ) - Mumbai University Important Topics for semester Exam Semester 1 ( All Branches ) - Mumbai University Note : This are based on the previous year papers data EN... 1
- Write short notes on: (i) TCP Timers (ii) HTTP (i) TCP Timers: a. Time-Out Timer: The Time-Out Timer in TCP (Transmission Control Protocol) is used to manage the retransmission of data in... 1
- Explain IPv4 header format in detail. The IPv4 packet header contains a fixed mandatory part, which is made of 13 fields. Let’s take a closer look at the IPv4 header format, the... 1