How To Use Spies in Angular Testing
Learn how to spy on a component’s service dependency to stub values or ensure that the service’s methods are called.
How To Build Custom Pagination with React
A method for handling large datasets on the view is by using the infinite scrolling technique – where more data is loaded in chunks as the user continues scrolling very close to the end of the page. This is the technique used in displaying search results in Google Images. In this tutorial, we will see how to build a custom pagination component with React for paginating large datasets. We will build a paginated view of the countries in the world.
Como configurar um projeto de nó com o Typescript
Escrever código JavaScript do lado do servidor pode ser uma tarefa desafiadora à medida que a base de código cresce. O TypeScript é um superconjunto tipado (opcional) de JavaScript que pode auxiliar na construção e gerenciamento de projetos em JavaScript em larga escala. Ele pode ser considerado um JavaScript com funcionalidades adicionais, tais como uma tipagem estática forte, compilação e programação orientada a objetos. Este tutorial irá explorar como usar o framework [Express](https://expres
Immediately-invoked function expressions
Protect your code and avoid polluting with immediately-invoked function expressions (IIFE).
5 Tips to Improve the Performance of Your React Apps
Here’s an up-to-date (March 2020) guide on performance optimization for React apps. We’ll cover things such as memo, PureComponent, React.lazy and Suspense.
How To Make Netflix-Like Swipers in Vue
If you have been building for the web for a little while, you would have like me encountered at least some issues when making swipers – for some reason, they always seem to have a mind of their own for a while and they come around. It’s either, the swipe
String Literal Types in TypeScript
String literal types allow you to define types that accept only specific strings. This way, you can limit the correct value of variable to precise strings.
Реализация плавной прокрутки в React
Что такое плавная прокрутка? Вместо того, чтобы нажимать на кнопку и сразу же переходить на другую часть (той же самой) страницы, пользователь переходит туда посредством анимации прокрутки. Это одна из малозаметных особенностей сайтов, которая однако имеет эстетическое значение.
Making Progressive Web Apps (PWAs) with React
Here’s how to create a Progressive Web App (PWA) using React. We’ll make use of Create React App to get a web app manifest and service worker going.
Code Splitting in React Using React Loadable
Learn how to use the React Loadable library to lazily load chunks of code when needed in the app.
