labusiness.blogg.se - What is mean in javascript

Let us take a look at two examples to understand the difference. With arrow functions the this keyword always represents the object that defined the arrow function. React is a JavaScript library for building interactive user interfaces.īy user interfaces, we mean the elements that users see and interact with on-screen. In regular functions the this keyword represented the object that called the function, which could be the window, the document, a button or whatever.

Developer Experience - your team’s experience building and maintaining your application.įor each part of your application, you will need to decide whether you will build a solution yourself or use other tools such as libraries and frameworks.

Scalability - how your application adapts as your team, data, and traffic grow.

Performance - how to optimize your application for end-users.

Infrastructure - where you deploy, store, and run your application code (Serverless, CDN, Edge, etc).

Integrations - what third-party services you use (CMS, auth, payments, etc) and how you connect to them.Rendering - when and where you render static or dynamic content.Data Fetching - where your data lives and how to get it.Routing - how users navigate between different parts of your application.

User Interface - how users will consume and interact with your application.

There are a few things you need to consider when building modern applications.

If you have any advice on how to improve the article, or you need some help wrapping your head around the concept, leave a comment, is a flexible React framework that gives you building blocks to create fast web applications.īut what exactly do we mean by this? Let’s spend some time expanding on what React and Next.js are and how they can help. This should be everything you need to know to be productive with the rest/spread operator in JavaScript. It’s just smartass code that’s prone to confuse your junior colleagues. It converts values to a string representation or at least something like the string version. That doesn’t perform well, in terms of speed and memory usage and is not elegant. Did you mean height2551Property heigth does not exist on type. To manipulate this object and use array methods on it such as reduce, from my previous example, you’d have to do the (arguments, 0) thing. The relationship between TypeScript (TS) and JavaScript (JS) is rather unique among.

Array/Object spread operatorĪssume you have the following object: const adrian = Hopefully, this removes the fog around the concept, for people who will find this article in the future and have the same question. Below, is my attempt to explain what do the three dots do in JavaScript. The title of the article is from a question I was asked to answer on Quora. By Otter GFDL or CC-BY-SA-3.0, from Wikimedia Commons