Web Developer News

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Data Stream Using Apache Kafka and Camel Application
Wed, 29 Mar 2023

Apache Kafka is an event streaming platform that was developed by LinkedIn and later made open-source under the Apache Software Foundation. Its primary function is to handle high-volume real-time data streams and provide a scalable and fault-tolerant architecture for creating data pipelines, streaming applications, and microservices.

Kafka employs a publish-subscribe messaging model, in which data is sorted into topics, and publishers send messages to those topics. Subscribers can then receive those messages in real time. The platform offers a scalable and fault-tolerant architecture by spreading data across multiple nodes and replicating data across multiple brokers. This guarantees that data is consistently available, even if a node fails.

Utilizing Database Hooks Like a Pro in Node.js
Mon, 27 Mar 2023

In this article, I’ll explain how to use database hooks in your Node.js applications to solve specific problems that might arise in your development journey.

Many applications require little more than establishing a connection pool between a server, database, and executing queries. However, depending on your application and database deployments, additional configurations might be necessary.

4 Best dApp Frameworks for First-Time Ethereum Developers
Sat, 25 Mar 2023

Ethereum has experienced dazzling growth in recent years. According to YCharts, the programmable blockchain now has approximately 220 million unique addresses. Linked to the increase in users is an explosion in the number of dApps. Global companies and startups across finance, sales, HR, accounting, supply chain, and manufacturing are using dApps to streamline processes and onboard new customers. Multiple frameworks exist that simplify the dApp development process for Web2 developers, who want to participate in Web3. This post examines four of the most popular. But first, what is a dApp?

What Is dApp?

A dApp, or decentralized application, is serverless software that runs on a decentralized network and uses a programmable blockchain for security, transparency, and immutability. A dApp combines smart contracts with a frontend user interface (HTML5, React, Angular). DApps can be used in a variety of industries and services, from social media to supply-chain management, payment tracking, complaint resolution, and all manner of accounting and (decentralized) financial services.

Browser Engines: The Crux of Cross-Browser Compatibility
Fri, 24 Mar 2023

So, you have been performing cross-browser testing to help eliminate any discrepancy around cross-browser compatibility, but have you ever pondered upon the cause of it? Why would your website look different from one browser to another? What lies at the center of these browser incompatibility issues?

The answer, my friend, is browser engines. You may be familiar with the term if you have been a developer or a website tester. A browser engine interprets the HTML, CSS, and JavaScript code of your website and presents it in front of your audience. You are able to see this post because of the browser engine of your browser. Meaning it is responsible for the neat representation of your website’s appearance over the internet, which makes it a very important topic for you to be aware of.

The Ultimate Guide to the Input and Output Decorator in Angular
Thu, 23 Mar 2023

Understanding the power of the Angular input and output decorator can be a great way to take your project development to the next level. This guide from CMARIX will show you all that you need to know about using the input and output decorators so that you can maximize their potential in your projects.

You will learn how to use these two powerful Angular tools together and understand how they work. 

Noteworthy Storage Options for React Native Apps!
Thu, 23 Mar 2023

You’re developing a phenomenal mobile app using the popular framework React Native! Sounds great! But have you devised a strategy for how to store, retrieve, and maintain data generated by your application? Well, data storage and management are crucial aspects of a mobile app that you need to consider during the app development process itself. And the fact that different features of a mobile app require different data storage mechanisms makes things complicated. To maintain an app’s spontaneity, you need to employ various storage methodologies as per the need. Some examples are offline storage, encrypted storage, auto-sync storage, service-oriented storage, and so on. Choosing the right data storage option is not that easy, and you are likely to get confused due to the availability of several options.

This article focuses on the various methods that you can use for storing your React Native application data. You’ll know the different React Native storage options and understand which option is perfect for your use case. 

File Uploads for the Web (2): Upload Files With JavaScript
Wed, 22 Mar 2023

Welcome back to this series about uploading files to the web. If you missed the first post, I recommend you check it out because it’s all about uploading files via HTML. The full series will look like this:

1. Upload files With HTML
2. Upload files With JavaScript
3. Receiving File Uploads With Node.js (Nuxt.js)
4. Optimizing Storage Costs With Object Storage
5. Optimizing Delivery With a CDN
6. Securing File Uploads With Malware Scans

In this article, we’ll do the same thing using JavaScript.

Mocha JavaScript Tutorial With Examples for Selenium Testing
Tue, 21 Mar 2023

As per StackOverflow insights, JavaScript is the most popular programming language. As the power of web and mobile is increasing day by day, JavaScript and JavaScript frameworks are becoming more popular. It would not be surprising to hear that JavaScript has become a preference for test automation as well. Over the past few years, a lot of development has happened in the open-source JavaScript based test automation framework development and now we have multiple JavaScript testing frameworks that are robust enough to be used professionally. There are scalable frameworks that can be used by web developers and testers to automate even unit test cases and create complete end-to-end automation test suites. Mocha is one JavaScript testing framework that has been well renowned since 2016, as per StateofJS.

With that said, when we talk about JavaScript automation testing, we can’t afford not to loop Selenium into the discussion. So I thought coming up with a step-by-step Mocha testing tutorial on the framework will be beneficial for you to kickstart your JavaScript automation testing with Mocha and Selenium. We will also be looking into how you can run it on the LambdaTest automation testing platform to get a better browser coverage and faster execution times. By the end of this Mocha testing tutorial, you will have a clear understanding of the setup, installation, and execution of your first automation script with Mocha for JavaScript testing.

useState() vs. useRef(): Understand the Technical Difference
Tue, 21 Mar 2023

React is a popular JavaScript library that allows developers to create reusable and modular user interfaces. useState() and useRef() are two of the most commonly used hooks in React, but they serve different purposes.

In this article, we will discuss the differences between useState() and useRef() and when to use each of them.

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