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Tutorial

React: How to create a custom progress bar component in 5 minutes

How to create a custom progress bar component in 5 minutes from scratch with animation

Tutorial

How to upload a file to Amazon S3 in Java (using Vaadin framework)

How to upload file to Amazon S3 in Java, but with UI build with Vaadin framework

Tutorial

React: how to dynamically sort an array of objects using the dropdown (with React Hooks)

How to dynamically sort an array of objects using dropdown and React Hooks and render it in React

Tutorial

Javascript: how to merge multiple objects with sum of values

Short blog post about how to merge multiple objects with the sum of property's values in Javascript.

Tutorial

React Context API: updating Context from a nested component (in functional components with Hooks and class components)

How to update React's Context from a nested component in two ways: using functional components with React Hooks and using class components.

Story

Tabata - Fitness App: my first personal project

This blog post is a story about development of my first personal project: Tabata - Fitness App.

Review

Vaadin: Drag and Drop Feature

In Vaadin 14.1 generic drag and drop feature was introduced. This blog post is a review of this feature based on the example of developing a simple football coach app.

Tutorial

Vaadin – Keycloak – Spring Security integration

The seventh (last) part of tutorial series Spring Boot – Vaadin – Keycloak – Spring Security Integration.