JavaScript

Build Your Coding Expertise from the Ground Up with 121 Hours of Content on JavaScript, from the Basics to Building Your Own Project Hey fellow geeks, This week, on our JCG Deals store, we have another extreme offer. We are offering a massive 99% off on The 2022 Javascript Developer Bootcamp Certification Bundle. Get it now with only $20 instead ...

There’s no doubt that React has played a significant role in software development projects. It has become the most popular web framework among developers worldwide since 2021. According to Statista, 40.14% of respondents reported using React.js, while 34.43% used jQuery. It’s been over a few years since React took top place as one of the best JavaScript libraries in the ...

There is no denying that every business wants to provide a seamless experience to its users through its app. And this can be achieved by making the backend of the app strong. Node.js is the one that’s becoming the first choice of businesses for developing scalable mobile and web applications. The USA alone has over 41,000 websites created using Node ...

In this article, we will explain 5 mistakes to look out for in React Native App Development. There’s no denying that React Native is among the best and the most used cross-platform mobile development frameworks irrespective of the time period. Why is it so popular? Both developers and entrepreneurs have been using this open-source UI-centric framework for its various benefits ...

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Hello. In this tutorial, we will understand how to write API documentation in Node.js using Swagger. 1. Introduction A swagger is a popular tool used for generating interactive API documentation. In this tutorial, we will see how to write swagger api documentation in the nodejs application. 1.1 Setting up Node.js To set up Node.js on windows you will need to ...

Hello. In this tutorial, we will interact with Amazon AWS SQS (simple queue service) to create a Node.js app with the help of a popular emulator known as LocalStack. 1. Introduction Localstack is an aws cloud service emulator that runs in a single container and allows us to run the aws applications on our local machines without connecting to a ...

Parameterized tests are used to test the same code under different conditions. One can set up a test method that retrieves data from a data source. This data source can be a collection of objects, external file or maybe even a database. The general idea is to make it easy to test different conditions with the same test method to ...

The code Let’s consider a simple function that returns a Promise that can either resolve or reject depending on the value ofthe first argument: export default function promiseMe(result, timeout = 1000) { return new Promise((resolve, reject) => { setTimeout(() => { if (result instanceof Error || result.startsWith("Error")) { reject(result) } else { resolve(result) } }, timeout) }) } While testing ...