Duomly blog

Programming is for those who think differently... for those who want to create big things and are willing to change the world.




Digital Ocean Review - Is it the best hosting in 2020?

Intro to Digital Ocean review is it the best hosting in 2020 Today we will go through the Digital Ocean review and verify if its the best hosting in 2020. Hosting is a crucial thing for every developer, cause we want our apps to be publicly visible, we need to deploy them somewhere. The most standard, simple, and popular for the smaller projects are shared hostings with preinstalled PHP or Node.

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Client-Side Rendering or Server-Side Rendering - what is the best solution for your next application?

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 .

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Serverless course Lesson 3: How to create MongoDB REST API in Node.js

Intro to Serverless course Lesson 3 Today you will learn how to create MongoDB REST API in Node.js. In the previous episodes of the serverless course, you’ve learned how to set up the AWS Lambda Serverless project. The URL is here: https://www.blog.duomly.com/lesson-1-serverless-how-to-get-started-tutorial/ In the second lesson, you’ve learned how to create AWS Lambda Serverless authentication with Node.js and MongoDB, and the URL is here: https://www.blog.duomly.com/lesson-2-serverless-authentication/ I’m super excited about what we will build because we will go forward in today’s lesson and develop more features.

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REST API vs GraphQL - comparison

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.

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How to implement redux-saga with ReactJS and Redux [TUTORIAL]

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.

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Lesson 2: Serverless authentication tutorial for beginners

Intro to serverless authentication In today’s lesson, you will learn Serverless authentication. Did you already finish the „What is Serverless” episode? If not, you can find it here: What is serverless Next, you should do the Serverless course’s first lesson, which was „Serverless How to Start”. You can find it here: Lesson 1: Serverless how to get started tutorial for beginners If you finished them before, you can focus on today’s lesson and learn new, essential skills.

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Lesson 1: Serverless how to get started tutorial for beginners

Intro to serverless how to get started tutorial Today we will go through the Serverless how to get start tutorial. In the previous episode, I’ve told you what is serverless, why you should use that, and how you can save even 90% of your IT infrastructure costs. You can find the URL here: What is serverless I’ve promised you, I will teach you how to build Serverless Node.js applications, and today we start the Serverless course.

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RxJS: Observable vs Subject - tutorial for beginners

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.

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Testing ReactJS app with Jest and Enzyme tutorial

Intro to testing frontend applications Writing a good quality web application requires testing, to avoid unexpected crash of one component when something changes in the other one. It’s necessary to understand the logic and plan test cases at the beginning to test the application well. In this article, I’d like to go deeper into development concepts like Test-Driven Development (TDD), and explain to you why testing the app is essential.

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14 most popular Angular interview questions in 2020

Intro to Angular interview questions Some time ago, we started a series about Javascript interview questions, we’ve gone throng some questions about React.js, CSS, and backend. But still, we didn’t cover all the technologies that are important for front-end developers; that’s why today, I decided to create a list of 14 questions about Angular, which can be very helpful in your next interview for the position with Angular. I’m going to start with the fundamental information that can be useful for junior developers, and then I’ll also cover some more advanced aspects of this framework.

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