श्रीलंका सीरियल ब्लास्ट: ABP न्यूज पर देखिए धमाके से जुड़ी पल-पल की अपडेट

ईस्टर की खुशी आज मातम में तब्दील हो गई. भारत के पड़ोसी और मित्र देश श्रीलंका में एक के बाद एक आठ विस्फोटों में सैकड़ों लोगों की मौत हो गई है. मरने वालों में काफी संख्या में विदेशी नागरिक भी हैं. हमले के बाद हर तरफ मातम पसरा है. इस हमले

Comments

Post a Comment

Popular posts from this blog

Understanding module.exports and exports in Node.js

Image
In programming, modules are self-contained units of functionality that can be shared and reused across projects. They make our lives as developers easier, as we can use them to augment our applications with functionality that we haven't had to write ourselves. They also allow us to organize and decouple our code, leading to applications that are easier to understand, debug and maintain. In this article, I'll examine how to work with modules in Node.js, focusing on how to export and consume them. Different Module Formats As JavaScript originally had no concept of modules, a variety of competing formats have emerged over time. Here's a list of the main ones to be aware of: The Asynchronous Module Definition (AMD) format is used in browsers and uses a define function to define modules. The CommonJS (CJS) format is used in Node.js and uses require and module.exports to define dependencies and modules. The npm ecosystem is built upon this format. The ES Module (ESM) ...
Read more

Create a Toggle Switch in React as a Reusable Component

Image
In this article, we're going to create an iOS-inspired toggle switch using React components. By the end, we'll have built a simple demo React App that uses our custom toggle switch component. We could use third-party libraries for this, but building from scratch allows us to better understand how our code is working and allows us to customize our component completely. Forms provide a major means for enabling user interactions. The checkbox is traditionally used for collecting binary data — such as yes or no , true or false , enable or disable , on or off , etc. Although some modern interface designs steer away from form fields when creating toggle switches, I'll stick with them here due to their greater accessibility. Here's a screenshot of the component we'll be building: Getting Started We can start with a basic HTML checkbox input form element with its necessary properties set: <input type="checkbox" name="name" id="id"...
Read more

Compile-time Immutability in TypeScript

Image
TypeScript allows us to decorate specification-compliant ECMAScript with type information that we can analyze and output as plain JavaScript using a dedicated compiler. In large-scale projects, this sort of static analysis can catch potential bugs ahead of resorting to lengthy debugging sessions, let alone deploying to production. However, reference types in TypeScript are still mutable, which can lead to unintended side effects in our software. In this article, we'll look at possible constructs where prohibiting references from being mutated can be beneficial. Primitives vs Reference Types JavaScript defines two overarching groups of data types : Primitives: low-level values that are immutable (e.g. strings, numbers, booleans etc.) References: collections of properties, representing identifiable heap memory, that are mutable (e.g. objects, arrays, Map etc.) Say we declare a constant, to which we assign a string: const message = 'hello'; Given that strings ar...
Read more