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List and keys in React intro List and keys in React are among the most basic concepts. It may be the first scary one for beginners who just started to create their first application using the React framework. And what’s even scarier, you can’t avoid using lists because almost every application has some kind of repeatable content. But in reality, really simple. It just needs to be explained. That’s why in this article, I decided to explain what lists are, how to build a list in JSX, what keys are and how to fix one of the most common errors connected to list and keys you will see a lot of times in your console.

This article contains affiliate links. By purchasing using these links you support our blog and YouTube channel. What are your future goals? What are your future goals? This question is pretty common while interviewing for the job of your dreams. And that’s kind of understandable that company that would like to hire you, what’s to know what are your future goals for work or even in life. First of all, if you can present your development plan and describe what you’d like to achieve in the next few years, you can be a great investment for the company to bring you on board.

Intro to Webpack tutorial Webpack is a tool very often used in software development, and it’s pretty useful. For many junior and even mid developers, Webpak can be the darkest nightmare, and it was scary for me as well. By all the power, I tried to avoid setting Webpack by using tools like create-react-app to build a new ReactJS application and never have to do any changes inside the ready config, as it seemed confusing.

Intro to setup MongoDB in the cloud with Atlas Almost every application you are trying to build needs a database; depending on the type of data you’d like to keep inside, some developers select SQL databases like PostgreSQL or NoSQL databases like MongoDB. Nowadays, when MERN and MEAN stacks for applications are more and more popular, many developers select MongoDB. To start a project, you’d need to set up MongoDB locally on your computer or online in the cloud.

Intro to Fetch vs. Axios One of the most essential parts of frontend development is communication with the backend by making HTTP requests. There are a few ways how we can make API calls in Javascript asynchronously. A few years ago, most applications were sending HTTP requests using Ajax, which stands for Asynchronous Javascript and XML. But right now, developers mostly decide about selection between fetch() API and Axios.

This article contains affiliate links. By purchasing using these links you support our blog and YouTube channel. Intro to Divi Theme Review When you start your own business, you have to consider one of the most important things is your presence on the internet. No matter if you are selling a digital resource or opening a restaurant, you need to have your website where you can share your information about your business, location, and make yourself visible for everyone online.

Intro to Client-Side Rendering vs. Server-Side Rendering We can create awesome web applications and websites with the technologies we have right now, but there’s still a performance that needs to be considered. Developers outdo each other to achieve the best results in loading speed and user experience in their projects. And at that point, there are many discussions on the way, applications should be rendered. Before modern front-end frameworks started to be used so commonly, websites were rendered on the server, and ready .

Into to REST API vs. GraphQL Since GraphQL was presented as a revolutionary alternative to RESTful API in 2015, there is a discussion between both solutions’ supporters and opponents. As everything, RESTful API and GraphQL both have pros and cons, which need to be considered selecting proper solutions for the next project. And as always, the choice should depend on the type of project that you are building. For some kind on the application, RESTful API will be a justified solution, when for the other type, GraphQL will be much better.

Intro to Redux setup tutorial Very often, you can hear about the state in frontend applications, but what it exactly is? Let me explain. State in frontend applications represents all the data stored in the application in a given time. It can be stored in different formats like objects or strings. Based on the state’s values, we can personalize the application, display, and hide certain elements. To manage the state in modern frontend frameworks, we can use different libraries like Redux, MobX, or NgRx.

Intro to RxJS Observable vs Subject RxJS is one of the most useful and the most popular libraries when using Angular as the main framework for your project. RxJS provides two types of Observables, which are used for streaming data in Angular. For most beginners, who just started with Angular, Observables are the biggest source of frustration; it’s confusing and not easy to understand. Personally, I felt the same; when I started with RxJS, it was confusing.