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Articles by Nikesh Jagsish Malik
8 articles
Explain about IIFEs in JavaScript
In the world of JavaScript, there are various techniques and patterns that developers use to write efficient, maintainable code. One such powerful programming technique is the Immediately Invoked Function Expression (IIFE). In this article, we'll dive into IIFEs, their benefits, and how to implement them using different approaches. We'll also explore some practical examples to help you understand their applications in real-world scenarios. What is an IIFE? An IIFE is a function expression that is executed immediately after its definition. It creates its own scope, preventing variables from polluting the global namespace. Syntax (function() { ...
Read MoreFind 1st January be Sunday between a range of years in JavaScript?
Finding years where January 1st falls on a Sunday is useful for planning events, scheduling, and calendar calculations. JavaScript's Date object makes this straightforward by providing methods to determine the day of the week. How It Works The approach uses JavaScript's Date constructor and getDay() method. The getDay() method returns 0 for Sunday, 1 for Monday, and so on. We iterate through a range of years, create a Date object for January 1st of each year, and check if it's a Sunday. Method 1: Direct Sunday Check This method directly checks if getDay() returns 0 (Sunday): ...
Read MoreHow do you make synchronous HTTP request in JavaScript?
Making synchronous HTTP requests in JavaScript blocks code execution until the response arrives. While generally discouraged, certain scenarios may require this approach. This article explores methods to create synchronous HTTP requests in JavaScript. Why Synchronous Requests? Synchronous requests pause execution until completion, which can freeze the browser. However, they're sometimes needed for: Critical data required before proceeding Sequential API calls with dependencies Legacy code compatibility Algorithm The basic steps for making synchronous HTTP requests: Create an HTTP request object ...
Read MoreHow to Send Axios Delete to the Backend ReactJS in JavaScript
Sending DELETE requests to a backend is a common requirement in React applications. Axios provides multiple ways to handle DELETE operations, making it easy to remove data from your server. What is Axios DELETE? Axios DELETE is an HTTP method used to remove resources from a server. In React applications, you'll typically use it to delete user records, posts, comments, or any other data that needs to be removed from your backend database. Algorithm Here are the steps to send an Axios DELETE request in React: Import Axios − Include the Axios library in ...
Read MoreHow to Switch CSS Class between Buttons Rendered with Map()?
When building web applications, developers often need to create buttons with dynamic styles. One of the most efficient ways to do this is by using the map() method in JavaScript. This method allows you to render multiple buttons with different styles based on their data. However, sometimes you might want to change the CSS class of a button dynamically based on user interaction or other events. In this article, we will discuss how to switch CSS classes between buttons rendered with map() in JavaScript. Syntax .button-class { property: value; } /* Switch ...
Read MoreExplain about noImplicitAny in TypeScript
TypeScript is a popular typed superset of JavaScript that compiles down to plain JavaScript. It offers numerous features to improve the overall developer experience, such as static typing, interfaces, and namespaces. One key feature in TypeScript is the noImplicitAny compiler option. In this article, we will explore noImplicitAny, its benefits and drawbacks, and two different approaches to deal with it in your TypeScript code. Approach 1: Explicit Type Annotations This approach involves adding type annotations to every variable and function parameter, ensuring that the compiler knows the expected types. Adding Type Annotations function add(a: number, b: number): number { ...
Read MoreHow to Update the State of React Components Using Callback?
Updating the state of a React component is an essential part of building interactive and dynamic web applications. State management can become challenging as components become more complex and nested. This article will cover how to update the state of React components using callback functions, providing you with two different approaches and working examples to make your development process smoother. Algorithm Understand the state management in React components Choose the right approach for updating the state Implement the chosen approach with code and explanations Provide working examples to demonstrate the usage of the approach Conclude with the benefits of ...
Read MoreFile uploading in React.js
File transmission represents a vital aspect of any online platform, permitting users to effortlessly transfer and disseminate files among each other. With the proliferation of JavaScript libraries and frameworks, file uploading has become significantly easier, with React.js being no exception. In this treatise, we shall delve into the intricacies of file uploading in React.js, exploring the algorithmic approach, various methodologies, and functional illustrations. Algorithm At the crux of it, the act of file uploading in React.js entails transmitting a document from the user's machine to the host server. This is achieved by employing a form that comprises an input element ...
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