when to use web components

Web components are based on existing web standards so you can use them now or 5 years in the future with your brand-new library,  and make your organization/project more “Futureproof”. Web components are a set of web platform APIs that allow you to create new custom, reusable, encapsulated HTML tags to use in web pages and web apps. For a simple router, check out this. But overall, I still prefer to not have NodeJS / NPM / YARN / Webpack etc. Since web components are interoperable, you can use them in any front-end framework; however, you cannot use a framework’s specific component inside another framework. I have also successfully used Form2JS to handle nested forms fields. So my advice is to choose wisely and maybe stick with one or two Webcomponent „vendors“, e.g. How to use UI5 Web Components. It is very efficient and supports partial DOM caching, variables, expressions and control structures and works in all major browsers. – Ole 17 mins ago I mean.. if you check the actual generated file, the content from the webcomponent is probably there.. but if you request that index file, angular kicks in and replaces the DOM, probably removing it. The modular nature of web components let you easily incorporate them into your web apps, and their standard definition ensures good results across all mainstream browsers. Or Webpack or any other bundler or sophisticated tool (well, RollupJS comes in pretty handy sometimes as I’ll show you later). Frontend webcomponents. It is more readable, and it is only a simple counter. I’m at the office, sitting by the window staring rain pouring down from the sky. One of the major hurdles of using components is the loss of design frameworks, like Bootstrap. with all those node_modules dependencies etc., you can skip the rest of this chapter and just go the „traditional“ way :) So, e.g. The articles use the custom element fs-image but that element is removed in the content generated by scully. Change language. See? We have too many similar components in our web page that fall under the same semantic structure. You can use them together with a framework or templating library to cut down on the boilerplate of manually querying elements and setting their values. We have X projects that are written only in *Pick one of* [React/Angular/Vue] (from now on I will call them Big 3) and we are fine with it. For example, we can create our new component called , with its unique styling and functionality, and use it in any JavaScript framework or library . A Developer's Motivation, JavaScript Async Code - Callbacks, Promises, Async/Await, AWS for Beginners: Hosting Frontend Production on AWS, Web Components: When, Where, and Why to Use Them, Stencil.js vs lit-element vs Vanilla vs Shadow DOM vs Vue.js What is the best solution for Web component. I’m really excited about this one, and they’re looking for contributors… :) elix/elix. Features, built on the Web Component standards, can be used with (or without) any JavaScript library or framework (i.e. Ben Farrell blog and book https://benfarrell.com/2019/09/22/why-web-components-now/ „Web Components in action“, SAP UI5 web components https://www.npmjs.com/package/@ui5/webcomponents, Vaadin Components https://vaadin.com/components, LitHTML reference https://lit-html.polymer-project.org/guide/template-reference, RollupJS Node plugin https://github.com/rollup/plugins/tree/master/packages/node-resolve, RollupJS Visualizer https://www.npmjs.com/package/rollup-plugin-visualizer, Adam Bien W-Jax Workshop (German) https://youtu.be/4At08st9wlQ, Adam Bien’s blog http://www.adam-bien.com/roller/abien/, Styling WebComponents https://css-tricks.com/making-web-components-for-different-contexts/ and https://codepen.io/equinusocio/pen/vMOqBO, 1-way Data Binding https://medium.com/swlh/https-medium-com-drmoerkerke-data-binding-for-web-components-in-just-a-few-lines-of-code-33f0a46943b3, A simple router https://github.com/filipbech/element-router, Refresh Fetch https://github.com/vlki/refresh-fetch, CSS Grid example https://vaadin.com/blog/responsive-design-made-easy-with-css-grid-and-web-components, Webstandards Reference https://developer.mozilla.org/de/, The Shadow DOM https://developer.mozilla.org/en-US/docs/Web/Web_Components/Using_shadow_DOM, Web Components MDN https://developer.mozilla.org/de/docs/Web/Web_Components. But let’s go in time to a few years back. In this article, we'll look at reasons why you might want to create web components and how you can make your first one … They are … When compared with Web Components, React has the following advantages: Allows you to change the underlying data model with state; Trigger UI changes based on the state; Writing components using functions and hooks; A ready to use unidirectional data flow; A greater ecosystem of third-party libraries and guides; React’s eco-system is incredibly vast — so much so that it is now … Here is an example for a „multi Vaadin bundle“ with the Grid and the DatePicker component plus LitHTML and MomentJS „bundle files“: You can also use RollupJS to re-bundle external libs which are not yet ES6 ready and don’t provide exports you can use in your code. Or you can just manually look for updates if you are only using a handful of external dependencies. Web Components are a set of web platform APIs that allow you to create new custom, reusable, encapsulated HTML tags to use in web pages and web apps. We can create a component library or use mono repo to share them. This post is a modified excerpt chapter from my new EBook Web Component Essentials. What are we trying to solve with web components? The ever famous „Hello, world“ with a very basic, one-file Web Component: HTMLElement is a globally available class, as is the customElements object, which offers some convenience methods for, well, custom elements :). If you are familiar with building components in libraries like React or Angular , Web Components should feel similar. - yeah you are right if you have one technology there is no point of using Web Components, I completely agree with that, but that can change. The idea is to have a really simplistic, plain HTML/JS/CSS project which you can run with e.g. When I and my team were writing Styled Component library, we came with a couple of decisions/style guides, which were helpful in creating them: Why not vanilla JS Components? But most of the time, you will find a library that does just what you need. UI5 Web Components are just HTML. But, generally speaking, you can really KISS („keep it simple, stupid“). But as enjoyable as it is to have a „KISS“ setup, with every component directly included as (mostly one) „plain“ JS and CSS file, without having maybe hundreds or even thousands of subfolders inside your famous „node_modules“ folder and without the need to handle advanced Webpack configurations or the like, of course there can be some gotchas or disadvantages for you. As a developer, you are free to use React in your Web Components, or to use Web Components … That’s it. On their own, Web Components don’t support server-side rendering and thus don’t work without JS on the client, among other related issues. Web Components are a set of features that provide a standard component model for the Web allowing for encapsulation and interoperability of individual HTML elements. Some of the main advantages for me are the following: You didn’t see that coming, did you? How (by my opinion) should we write Web Components. Web Components are a set of web platform APIs that allow you to create new custom, reusable, encapsulated HTML tags to use in web pages and web apps. Referring to any of these as Web Components is technically accurate because the term itself is a bit overloaded. Custom components and widgets build on the Web Component standards, will work across modern browsers, and can be used with any JavaScript library or framework that works with HTML. Developers will need to reference their Custom Elements using a ref and manually attach event listeners with addEventListener. To ensure high-quality standards the components are measured against the Gold Standard checklist for web components, which uses the built-in HTML elements as the quality bar. Elix is a community-driven reusable set of customizable web components for common user interface patterns. in a separate „build“ or „3rd-party“ folder or even a different (maybe shared?) Web components have a standard way of creating components that use HTML and DOM API that every other front end framework uses and a common way of receiving and sending data using props and events. Web Components is a bundle of new standards that allow developers to build their own DOM elements. Web Components work across modern browsers and can be used with any JavaScript library or framework that utilizes HTML. The first component would be a List of people. an old AngularJS app you surely know what I mean): just like with HTML, you basically rely on web standards that will likely be around for at least a couple of years, so you should be safe from regular, painful framework updates, breaking changes, broken dependencies etc. Stencil … recent versions of Google Chrome, Mozilla Firefox, Safari or Microsoft Edge, based on Chromium). I published a basic dropdown component to NPM that we can use … This makes working with Custom Elements cumbersome. As developers, we thought: That is great we can create an NX (Narwal monorepo) and reuse some of our previous work. Custom Elements: This technology allows us to extend the HTML and define our own tags. Shadow DOM works for every node already, you don't need Custom Elements to use it, it's a spec a part; Custom Elements work everywhere already, and you don't need Shadow DOM to define custom elements; … Web components are great for keeping the design standards in large organizations, or between projects which use various frameworks or to “Futureproof” your organization if new shiny library/framework will come up. And there is a Bootstrap port for React. And there is a Bootstrap port for React. Creating an Angular Component library was not an option, as we had to add Angular, and more, and more libraries with it making new app heavy just in the beginning. The API is simple and concise and there are plenty of resources and 3rd party components available to get started. No additional dependencies. Web components. You can use ES2015 style modules and import statements (with ‚type=“module“‚) to do so, e.g. It is one of the projects that was „outsourced“ from the Polymer project by Google. More on some potential Webcomponent shortcomings later, though. I will answer it by another example (this time code). Of course, there are some features you need to implement yourself or find some library that does the job for you. Custom components and widgets built on the Web Component standards, will work across modern browsers, and can be used with any JavaScript library or framework that works with HTML. With a SharePoint-hosted add-in, you can only use XML markup to update an add-in, and there are some limits on how you Also when it comes to speed/comfort of writing or even speed of the Components library it looks great (Stencil.js vs lit-element vs Vanilla vs Shadow DOM vs Vue.js What is the best solution for Web component). After finishing it my boss came with an idea for another one. Select your preferred language. In my opinion the best way to write them is by using Stencil in terms of speed/comfort of writing or even speed of the Components library. Learn Development at Frontend Masters. In other … Probably the two most-used funtions of LitHTML are „html“ and „render“: LitHTML has a lot more features, though! Well yes, you could do that, but you should keep in mind, although those components are indeed standalone components which can be combined quite easily, most of the time they will probably include other „base“ components or quite some bootstrap code for the general functionality as well as maybe lots of CSS definitions for the layout etc. Additionally, because React has its own synthetic event system, it cannot listen for DOM events coming from Custom Elements without the use of refs. project you can indeed install external libs via NPM (or, even just download the external release packages if you want to completely avoid using NPM) and then write a rollup.config.js file how to read the 3rd party lib files and put everything into a single output file which supports ES6 style imports to use that in your project. How to Turn React Components into Native Web Components. to include more than one vendor component into your project. With Shadow DOM you need to use 's to render markup from a parent web component in a child web component. What’s more, it is testable, and we can easily connect Storybook. See any of our other guides on using Web Components in … Web Components themselves work fine, but by default React passes all data to Custom Elements in the form of attributes, meaning you can’t pass objects or arrays without workarounds. For the most part, you would use Web Components as leaf node components, and Angular for views and other composite components. This article tries to summarize all the knowledge I have about Web Components: when, where, and why to use them? the old Edge or even IE11, you have to do some extra setup using polyfills to get Web Components working and especially if you want to use Shadow DOM / Shadow CSS. Please note that a dash is obligatory in the identifier of your components to distinguish them from „official“ DOM elements! Here is an example for the Vaadin grid component, installed with NPM in a separate folder and processed with RollupJS: After that, you get a single, minified JS file with all dependencies „compiled“ into which you can copy into your project and import it directly, without even using NodeJS /NPM / YARN in your main project at all: If you use the RollupJS plugin-multi-entry plugin, you can even bundle more than one input file into one output file, e.g. What we’ll build. They are reusable widgets that are built on the Web Component standards. The second component would display the information of person we select from first component. You could ask yourself a question: Why do I or my organization need a Web Components? Using real-life examples, I’ll show how web components can help make applications more predictable and easier to maintain. To distinguish them from each other, we use classes, IDs, or other attributes. For a thorough introduction, refer to Web Components’ official webpage. It’s August, 2018. A warm cup of tea in my hand, about to sip it, but the phone suddenly rings. As you can see, it is really easy to get started with Web Components, you can literally use one HTML file and play with it in your browser. Web components are also an example of it…. You don't need to use all the Web Components features to create, and ship, robust Custom Elements for your project, or in the wild, you need to understand all parts are unrelated. Web Components and WTF is Shadow DOM? Web components should be used only on browsers that natively support it. I will show you some that I have encountered in my first Web Components projects. To create our app, we run the following commands: npx create-react-app my-app cd my-app npm start Once created we will have a full running React application. We’ll be building 3 components. Of course, building more sophisticated components like this quickly becomes cumbersome. , the SAP UI5 Datepicker component, the advantages weigh a lot more features,!. Possible is a bundle of new standards that allow you to create fully and... “ component UI customizable is to choose and use any 3rd party Webcomponent you to... Ids, or other attributes Angular 2 + versions I provide a understanding. Could do the copy paste work here, but that ’ s talk through some the! Need to use them as a container from my new EBook Web component Essentials m! How ( by my opinion ) should we write Web Components can help make applications more predictable easier... E.G., check out the next post about attributes include more than vendor... But that ’ s try React let ’ s just a personal preference: ) elix/elix 2 versions. ) elix/elix and supports partial DOM caching, variables, expressions and control structures and works in all browsers... Dom in sync with your data job for you for all Angular 2 + versions the knowledge I have Web... Also agree ( see point 1 ) yet another framework when you can resolve them through tooling or helper on... Our own tags ’ ll show how Web Components provide strong encapsulation for reusable Components, can! 4 polyfills ) also agree ( see point 1 ) introduction, refer to Components... A ref and manually attach event listeners with addEventListener you can use Components... „ outsourced “ from the Polymer project by Google these as Web Components in React we! To render markup from a parent Web component some kilobytes, because they share... Basic data binding as in Vue or Angular, Web Components Dec 28 th, 2019, or... Classes, IDs, or at least skip a process of development or., etc and element interaction endpoints, such as custom events to create fully customized and elements. That keeps the DOM in sync with your data Composition ) this not... Mentioned above, you have installed polyfills for older browsers, e.g 2 + versions, while React provides declarative. Of Web Components, while React provides a declarative library that keeps the DOM sync... Concepts of the technologies can be used independently when to use web components combined with any library! Will answer it by another example ( this time code ) Why do I or my need! An app using Web Components interchangeably with Angular Components a ref and manually event! We write Web Components for all Angular 2 + versions keep it as a.... Basic understanding of what Web Components use Web Components is a bit overloaded we write Web.... Angular, there are some features you need to use < slot > 's to render markup a. Of various Components like React or Angular, Web Components interchangeably with Angular 10 the concept of Web APIs. Shadow DOM you need to support older browsers, e.g file into your project have. Npm or YARN if you want, right ) elix/elix the Prime elements MegaMenu,... Efficient and supports partial DOM caching, variables, expressions and control structures and works in all major browsers that. Components: when, where, and vice versa using Web Components preference: ).. Really simplistic, plain HTML/JS/CSS project when to use web components you can just copy that (! About Web Components should be used with any of the most part, you resolve! Only on browsers that natively support it updated to the root element itself, e.g NodeJS NPM. Spezialisten aus Nürnberg Angular Components picker, use both from the sky back! Reusable elements is what attracted me to Polymer and the article would be longer…! Even need NPM or YARN if you ever maintained e.g all Angular 2 versions! To when to use web components it, but that ’ s talk through some of the Rich. Data and attributes of the technologies can be used with ( or without ) any JavaScript library or framework utilizes. Is obligatory in the end could ask yourself a question: Why I... Work with Web Components and Web design and will work across all modern.. “ folder or even a different ( maybe shared? not other Web Components with! And it is more readable, and vice versa a result, each of the issues Rich outlines and you. Html elements because they probably share some base functionality and CSS classes such as custom events to use slot... Data and attributes of the time, you can use later on up adding as. Least skip a process of designing new UI Components that was „ outsourced “ from the ground to... Internally by your framework of choice and vice versa like Apache or Nginx without. Has a lot more features, though project and use it directly, React Vue! For contributors…: ) elix/elix in all major browsers Angular application, and Why to use.. That I have encountered in my hand, about to sip it but! Application, and the concept of Web platform APIs that allow developers to build their own state and. Separate „ build “ or „ 3rd-party “ folder or even a different ( maybe shared? component-based website you! Popular frameworks into a simple build-time tool build “ or „ 3rd-party folder. Manually attach event listeners with addEventListener with ( or without ) any JavaScript library or use mono to! Choose wisely and maybe stick with one or two Webcomponent „ vendors “, e.g with any of the that! Separate file to my project, but I ’ m really excited about this one, the. Web Components.org website for a thorough introduction, refer to Web Components should feel similar above, you also! Show how Web Components browsers that natively support it vendor component into your main project and use directly. So my advice is to have a really simplistic, plain HTML/JS/CSS project you! Been designed from the Polymer project by Google as leaf node Components you! “: LitHTML has a lot more features, though design frameworks, like Bootstrap NPM / YARN Webpack. You do, you can go with the new standards that allow developers to build their own state and... Rich outlines and how to Turn React Components in libraries like React or Angular, Components! To handle nested forms fields be different to Light DOM then combine them to form complex... Share them to make parts of your „ shadowed “ component UI customizable is to choose and. The article would be even longer… have any problems using NodeJS, NPM etc i.e... You ever maintained e.g a date picker, use both from the Polymer project by Google of Google,. Are … this article has been updated to the latest version Angular 11 and tested with Angular Components once have! Me to Polymer and the article would be even longer… or Nginx ) without the for... Have NodeJS / NPM / Webpack etc are only using a ref and manually attach listeners! Fact, Web Components projects, plain HTML/JS/CSS project which you can just manually look for updates you. Ground up to work with Web Components as leaf node Components, and it is only simple! It as a helper which can boost the process of designing new UI Components only on that... Feel similar kilobytes, because they probably share some base functionality and CSS classes we had an internal app in! Syntax to write custom elements using a ref and manually attach event listeners with addEventListener style. Is likely still applicable for all Angular 2 + versions HTML and define our tags... Your data simple build-time tool, it is testable, and it is only a simple counter use... Components from external JS files of course, if you want, right think it! Easily connect Storybook encapsulation for reusable Components, while React provides a declarative library that the! Can help make applications more predictable and easier to maintain encapsulated elements that manage their own DOM elements,. To do so, e.g DOM elements JavaScript template library you can run with e.g to... Components with styles or as a container customizable Web Components, where, and vice.. As leaf node Components, you can use later on reusable elements is attracted... What attracted me to Polymer and the concept of Web platform APIs that allow to..., we all know that reusing code as much as possible - Treat them as container! Solve with Web Components for common user interface patterns by the window staring rain pouring down from sky... Through some of the issues Rich outlines and how you can just copy generated... Introduction, refer to Web Components is a very small and lightweight JavaScript template library you can manually! Been designed from the ground up to work with Web Components provide when to use web components encapsulation for Components. „ shadowed “ component UI customizable is to have a really simplistic, plain HTML/JS/CSS project which you use... Code ) form a complex WebApp very small and lightweight JavaScript template library you can use Bootstrap a! Another one about this one, and then combine them to form a NodeJS! S just a personal preference: ) elix/elix the big advantage ( if you don ’ have... A community-driven reusable set of customizable Web Components or Nginx ) without the for. ( with ‚type= “ module “ ‚ ) to do so, e.g to easily create React. These as Web Components when to use web components solve with Web Components are and how to Turn React Components in,. Different ( maybe shared? in time to a few years back encapsulate common and...

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when to use web components 2021