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#Error get unpkg react code#Let's create one here, and we'll call it Link.I've attached copies of the code below. #Error get unpkg react plus#React is, at core, JavaScript plus some features to help us build apps.Īnd since we're working with JavaScript, what is a JavaScript feature that allows us to create or output something as many times as we like? We try to write code that is DRY, where you "don't repeat yourself." As programmers, we always strive to repeat ourselves as little as possible. In programming, if you're having to repeat yourself a great deal, it's likely a sign that your code can be simplified and shortened in some way. For each link, we have to repeat the same HTML elements again and again. Each has a URL, a title, a shorter URL, and an excerpt. If we examine our HTML structure, each link consists of the same parts. #Error get unpkg react how to#How to make HTML reusable with React components Now let's use React to improve our site by dynamically displaying our links. The latest Tweets from React document.getElementById('root'))Īnd if we look at our result, it works like before. So now we have everything we need to run our React app: We can create that reference by saying document.getElementById('root'). The first is the app itself, meaning our HTML from before, and the second must reference our entry point. We'll add that, then use the render() function from ReactDOM to do the work of rendering the app. The conventional entry point is a div with the id of root ( ). The entry point is an HTML element where we insert our React application into the page. ![]() How to create and render our React appĮvery React app must have what's known as an entry point. Note that we have a script where we can write our React code, but no HTML. ![]() Here's what our code looks like at this point: The third script is to bring in a tool called Babel. The first is for building our React app, and the second is for displaying, or rendering the React app in the browser. All we have to do is bring React in with the following external scripts.* We can build a React app out of a single HTML document. Sounds difficult? It's simpler than you think. Let's turn our static HTML into a dynamic React app. #Error get unpkg react upgrade#How to upgrade any HTML site to a React app And since our goal is to build great apps with JavaScript, we know to use React. When it comes to adding behavior to a site, we need JavaScript. We'll need a way of making our site more dynamic to display as many links as we need. HTML alone is not going to be the answer. What's a better, that is, a simpler and more extensible way of writing this? The latest Tweets from React static HTML alone would be fine if we only needed to show a few links.īut how could we display 100s or 1000s of links this way, all with different data, as a search engine might need to do? React is a JavaScript library for building user interfaces. React makes it painless to create interactive UIs. React - A JavaScript Library for Building User Interfaces Here's how we would show the first three results that come up when you search for "reactjs" in Google. What's the way to build out a user interface without knowing React or even JavaScript?īy using HTML elements as part of a simple HTML document. This may seem ambitious if you are brand new to React, but it requires a knowledge of only two simple concepts: HTML and basic JavaScript functions. In light of React's versatility, we can recreate any site or user interface that we see on the web.įor this lesson, let's remake part of an app that you likely use every day-Google Search. It takes advantage of HTML's popularity and strength as the most popular programming language, by letting you use a very similar syntax to HTML to build interfaces and add dynamic features to it using JavaScript. What makes React such a desirable library to learn is that it doesn't replace HTML. It's often referred to as a library for building UIs, short for "user interfaces". React arrived in 2013 as a better way to build web apps with JavaScript. #Error get unpkg react professional#Let's get started! Want the complete guide to become a professional React developer from start to finish? Check out The React Bootcamp. React is a powerful tool for any developer who knows HTML and wants to build more organized and dynamic websites, faster. In this article, we're going to see how to use the JavaScript library React as a way to add convenience and reusability to our websites. HTML is the language of the web, but creating entire websites with HTML alone can be repetitive and hard to manage. ![]()
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