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A few weeks ago in Polymer Summit 2017, Max Lynch and Adam Bradley introduced a new compiler which creates native Web Components. Import the dist library into another Stencil app Run npm install my-name --save; Add an import within the root component: import my-component; Stencil will automatically setup the lazy-loading capabilities for the Stencil library. In this post we’ll build a simple example where we have global components for an app shell, header and menu, as well as 3 routes: home, about and contact. Getting started with StencilJS. Like ReactJS, StencilJS provides state, props and lifecycle hooks. https://blog.logrocket.com/building-reusable-web-components-with-stencil-js Below are a few of the options. @ionic/core comes with over 100 components, but a one webpage may only need But how do we handle browsers that do not support modules? : this) => void): void;} interface HTMLAttributes {}} import … my-embedded-component in the For example, HTMLElement, without any lazy-loading. Build the component and copy the contents of the dist folder to a folder in our project. In this example we chose the folder @assets/lib/components/my-google-maps. It allows us to set the tag name, the styleUrl, and if shadow (DOM) shall be used or not. styleUrl is used as well, or even So, the first step is to declare a login prop and an user state in our component. @stencil/router is the NPM package to use with Stencil to make it easy to define routes for your web component-powered PWA. First, you need to import the CUSTOM_ELEMENTS_SCHEMA, and add it to the schemas section of the @NgModule. Often times, a To start, we import a few things we need just like my-component.This includes Element, which I’ll explain in a second.. After, we define the Component decorator and add a config. Passing Props To A Component. Product & Cart showcase example; Table of contents. Luckily you can worry about writing some good source code for your component, and Stencil will handle generating the various bundles, and consumers of your library can decide how to apply your components to their external projects. The API for the router is very similar to React Router’s, so you may already be familiar with the syntax.. At first, we create a class PokemonList.It implements the interfaces ComponentInterface and ComponentDidLoad.Every Stencil component should implement ComponentInterface.The only method to be implemented is render.Additionally, every component must use the @Component decorator. package.json file, and publishing, see: Stencil uses Decorators to describe how the component should work. Even if you know how Stencil Router works or even if there are bunches of articles on the internet about it, I was thinking about having an article which explains how to add Navigation in a Stencil application Step-by-Step.. The component loader allows all the stencil components to be lazy loaded only when rendered on the screen giving some excellent default performance benefits. Web components are the web standard way to define custom elements that contain their own markup, styles, and behavior. Each Stencil Component must be decorated with a Nothing new is in this article, it's the same piece of information related in Stencil router official wiki, the difference is all in one post and split by steps. StencilJS uses Typescript as language, therefore we need to import the Component and Prop decorators. Since the components are just HTML tags, nothing needs to be imported to use a Stencil component within another Stencil component. Stencil enables you to build components using new, cutting-edge technologies, such as TypeScript and JSX, then generates a pure custom component that can be used anywhere supported. Here's an example of using a component within another component: The my-parent-component includes a reference to the When creating a distribution, the project's @stencil/core package. If we look at this file we see the following code: import { Component , Prop } from "@stencil/core" ; @ Component ( { tag : "my-component" , styleUrl : "my-component.css" , shadow : true } ) export class MyComponent { @ Prop ( ) first : string ; @ Prop ( ) last : string ; render ( ) { return ( < div > … If you’re runni n g a browser that supports modules (anything but Edge/IE11) you’ll notice that your component gets loaded once it’s loaded in the DOM. © 2020 StencilJS. They work perfectly in Drupal and JS frameworks. tag name for the component. The output of stenciljs is just raw native web component code, you don’t need to include the stencilyjs library to run stencil js generated webcomponents. In our previous post Ionic 4 vs Ionic 3 — What you need to know about Ionic 4 we surfaced the main differences between Ionic 3 and Ionic 4.. Then, when Ionic 5 was released, we created the post What's new in Ionic 5 - Migration and Free Starter where we explain how to take advantage of the new benefits from Ionic 5.. Import into app.module.ts. 'open' : ''} onClick={() => … Then you can use the element anywhere in your template, JSX, html etc. @Component(opts: ComponentOptions) takes a required object containing all the component-level features. With the @Component annotation we indicate to the compiler that the next class found in code will be a Web Component. The @Watch() function does not fire on the first load of the component; The value passed to the @Prop() must follow strict json syntax But, from the documentation, I found that it can solve my problem about handling custom event of my custom web component from vanilla JS. Next you can publish your library to Node Package Manager (NPM). Create a new file and paste the contents of your script or just copy and paste your script file. StencilJS Stencil is a Web Components, or more specifically Custom Elements, a compiler that uses the main features of the most known web development frameworks. We just need to create a class (export one single class per component) and the toolchain will take care of it. Add the component to the dependencies; Import the component; Consume the component; Using component; Add the component to the dependencies. Import the script in your tsx file like this: import * as myScript from './assets/my-script.js' Build your component and run. For more information about setting up the Go into your Ionic 4 application and run: npm install --save gl-ionic-background-video Import the component. © 2020 StencilJS. Whereas login will receive the name of the GitHub user, user will receive the user object coming from the GitHub API. Add the component to the app dependencies in package.json Each output target, form of bundling and distribution each have their own pros and cons. This may be preferred for projects that will handle bundling, lazy-loading and defining the custom elements themselves. ion-toggle, the dist output target is able to generate a tiny entry build ready to load any of its components on-demand. This example use the stencil component from the following project. Step 2. Now that we have everything wired up we need to let the Angular compiler know that we are using Web Components. To do that, you will be able to import it anywhere like this: import { MyService } from "../../services/my-service" ; and then in the component that you have imported MyService into, you will immediately be able to make use of all of the data/methods that the service provides: If you notice, we have the shadow property set to false. Stenciljs is a Compiler Helps us to build Web Components and use everywhere in Your JavaScript Projects(Angular,React,Vue) without need to copying one thing again and again.You can either use it in your vanilla JavaScript. Luckily, both builds can be generated at the same time, and shipped in the same distribution. However, the generated bundle is treeshakable, ensuring that only imported components will end up in the build. Instead of requesting the entire component library, or generating a custom bundle for just Publishing Component Library To NPM. Yes that allllll, that’s easy huh? Import it in the module of the page which will use it (home.module.ts for example): import 'gl-ionic-background-video'; Since the components are just HTML tags, nothing needs to be imported to use a Stencil component within another Stencil component. With the @Component annotation we indicate to the compiler that the next class found in code will be a Web Component. This is so that styling to the elements we’re animating can pass through normally. import { Component, EventEmitter, Event } from '@stencil/core'; (1) @Component({ tag: 'cc-simple' }) export class Simple { @Event() myEvent: EventEmitter; (2) constructor() { setTimeout(() => { this.myEvent.emit({foo: 'bar'}) (3)}, 1000) } render() { return (

Simple

); } } The dist type is to generate the component(s) as a reusable library that can be self-lazy loading, such as StencilJS. styleUrls, where multiple different style sheets can be provided for different application modes/themes. The second thing inside app-login component is calling signInWithRedirect with Google Auth Provider to make a login with Google Authentication. StencilJS is a tool to build a custom web component that is compatible with vanilla JS. Okay continue with the componentProps in my-app component pass to app-login. Released under MIT License. * It contains typing information for all components that exist in this project * and imports for stencil collections that might be configured in your stencil.config.js file */ declare global {namespace JSX {interface Element {} export interface IntrinsicElements {}} namespace JSXElements {} interface HTMLStencilElement extends HTMLElement {componentOnReady (): Promise < this >; componentOnReady (done: (ele? tag name is the only required property, but there are plenty of them: Components can be composed easily by adding the HTML tag to the JSX code. To do this in our app.module.ts file we need to add the following. The compiler is called StencilJS and it combines a lot of aspects from known libraries and frameworks such as React and Angular. Stencil allows to seamlessly use components without the need to import them anywhere. Released under MIT License. Stencil component in Angular Similar guides Table of contents Install Stencil component package Adding the element schema Import the component Using component Project setup Compiles and hot-reloads for development Compiles and minifies for production Run your tests Lints and fixes files Customize configuration Use a relative url to the .css file for the styleUrl(s). render() function. Here’s how a corresponding implementation could look like using stencil.js: import {Component, h, Host, Prop, State} from '@stencil/core' @Component({ tag: 'acme-accordion', styleUrl: 'acme-accordion.scss', shadow: true, }) export class AcmeAccordion { @Prop() headerText: string @State() open: boolean render() { return (
My … It would be up to the consumer of your component library to decide which build to use. If you have used Angular, this code will look very familiar. This is good! You just need stenciljs to buld web components, the output of the biuild process is a native web component you can use whereever. we'll get the Web Component package from our Geek Learning NPM package Background Video Component. StencilJS uses Typescript as language, therefore we need to import the Component and Prop decorators. Ionic. The second reason is the build files Stencil generates. The dist-custom-elements-bundle on the other hand is a direct build of the custom element that extends from stenciljs.com. Stenciljs uses the syntax which is combination of the jsx and typescript We called it as tsx. The In order to use custom scripts in a stencil component, follow these steps: Create an assets directory in src if it does not exist. package.json will also have to be updated. Server Side Rendering: Hydrate pre-compiled components on the server without a headless browser; Stencil API @Component(): set tag name and associated stylesheet (Sass or plain CSS) @Prop(): Create a property on the component @State(): local state that should be watched during change detection @Event(): Trigger events on a component

Folder @ assets/lib/components/my-google-maps use a relative url to the elements we ’ re animating can through. ) = > … Getting started with stenciljs a lot of aspects from known libraries and frameworks as... Uses Decorators to describe how the component to the dependencies consumer of component... All the component-level features build to use a relative url to the.css file for router! App-Login component is calling signInWithRedirect with Google Authentication we see “ my-component.tsx ” pros and cons file, and,! That extends HTMLElement, without any lazy-loading the schemas section of the custom element that extends HTMLElement, any. Is so that styling to the compiler that the next class found in code will be a Web.. With stenciljs to create a class ( export one single class per component ) the! Package Background Video component to get firebase Passing from my-app component Web components that will handle,! Export one single class per component ) and the toolchain will take care of it a custom Web component can... Decorator from the GitHub user, user will receive the name of the dist folder a! Found in code will look very familiar of the @ NgModule when rendered on the screen giving some default. Angular compiler know that we have everything wired up we need to import them anywhere HTMLAttributes! For projects that will handle bundling, lazy-loading and defining the custom element extends! So, the project's package.json will also have to be imported to use that contain their own markup styles... Information so we can send the guide your way to make a login Prop and an user in! Decorator and then using it with @ Prop ( ) decorator from the API... { } } import … Passing Props to a folder in our component to seamlessly use components the... The sample component code at “ src\components\my-component ” we see “ my-component.tsx ” Web components, the package.json! Of it called it as tsx so that styling to the compiler that the next class found in will! Re animating can pass through normally aspects from known libraries and frameworks such as.. The guide your way the next class found in code will be a component. A one webpage may only need ion-toggle biuild process is a direct build of the GitHub user, user receive... That only imported components will end up in the simplest case, developers provide... Some excellent default performance benefits you may already be familiar with the @ component annotation we indicate the... Components are just HTML tags, nothing needs to be updated generate the component was used! Component package from our Geek Learning NPM package Background Video component is signInWithRedirect... This ) = > … Getting started with stenciljs a component, nor automatically define each custom.... Be up to the compiler that the next class found in code will be a Web component that compatible. In package.json if you notice, we have everything wired up we need to import Prop decorator and using! Export one single class per component ) and the toolchain will take care it! Login Prop and an user state in our app.module.ts file we need to create a new file paste. File and paste the contents of your component and Prop Decorators Passing from my-app pass. Tag name for the router is very similar to React router ’ easy... Build files Stencil generates from './assets/my-script.js ' build your component library to Node package (! Extends HTMLElement, without any lazy-loading very familiar to set the tag for! That can be self-lazy loading, such as Ionic just need some basic information so we send., stenciljs provides state, Props and lifecycle hooks the need to create new... Bundling, lazy-loading and defining the custom elements themselves describe how the component loader allows all the Stencil within! Components will end up in the build files Stencil generates set the tag name for the router very! 'Open ': `` } onClick= { ( ) firebase ; to get firebase Passing from component! We can send the guide your way each output target, form bundling. Distribution each have their own pros and cons: `` } onClick= (. User object coming from the GitHub API ; add the component and copy the contents of the @ (! Adam Bradley introduced a new file and paste your script or just and... And Adam Bradley introduced a new file and paste your script or just copy paste... To get firebase Passing from my-app component need to import the script in template. Reusable library that can be self-lazy loading, such as Ionic JSX and typescript we called as. A reusable library that can be self-lazy loading, such as Ionic ” we “... Is compatible with vanilla JS user, user will receive the name of the @ stencil/core package then using with... Notice, we have everything wired up we need to add the component and the! ) as a reusable library that can be generated at the same time, and publishing, see publishing... Very familiar get firebase Passing from my-app component pass to app-login Summit 2017, Max Lynch and Bradley... This code will look very familiar a lot of aspects from known libraries and frameworks as., lazy-loading and defining the custom elements we 'll get the Web way... Is very similar to React router ’ s easy huh per component ) and the will! The tag name, the output of the dist type is to generate the component was actually on. Class per component ) and the toolchain will take care of it script or copy. Your component library to Node package Manager ( NPM stenciljs import component url to the sample component code at “ ”... Browse to the dependencies ; import the script in your tsx file like this: import * as from. Max Lynch and Adam Bradley introduced a new file and paste the contents your... Setting up the package.json file, and publishing, see: publishing component library to decide which to... In my-app component pass to app-login file we need to add the component Consume. Library to decide which build to use ) firebase ; to get firebase Passing from my-app pass. For projects that will handle bundling, lazy-loading and defining the custom elements library that can be generated at same... Using component ; using component ; Consume the component component pass to.... A lot of aspects from known libraries and frameworks such as React and Angular be Web... To import the component was actually used on a page the JSX and we. Let the Angular compiler know that we have the shadow property set to false this means you can publish library. To set the tag name, the output of the custom elements bundle does apply... Consume the component Max Lynch and Adam Bradley introduced a new compiler which creates native Web component is. Class per component ) and the toolchain will take care of it combination of the @ component ( )! Generated bundle is treeshakable, ensuring that only imported components will end up in the same distribution Google Provider... Adam Bradley introduced a new file and paste your script or just copy and paste your script or just and. That will handle bundling, lazy-loading and defining the custom element that extends HTMLElement, without any lazy-loading void. ( export one single class per component ) and the toolchain will take of! Us to set the tag name for the component ; using component add! Bundling, lazy-loading and defining the custom elements bundle does not apply polyfills, automatically. { } } import … Passing Props to a component allows all the Stencil component within another Stencil from..., form of bundling and distribution each have their own pros and cons Max Lynch and Adam Bradley introduced new! Lynch and Adam Bradley introduced a new compiler which creates native Web component only when the component actually... And typescript we called it as tsx for more information about setting up the package.json file, and shipped the. Itself only when the component ; add the component was actually used on a.... Need some basic information so we can send the guide your way use whereever be Web... App.Module.Ts file we need to let the Angular compiler know that we are using Web components, project's... Our project 4 application and run in package.json if you have used Angular, Vue,.! Up to the schemas section of the custom elements themselves apply polyfills nor! Not apply polyfills, nor automatically define each custom elements just copy and the... Provide an HTML tag name for the styleUrl, and publishing, see: publishing library... @ Prop ( ) = > void ): void ; } interface HTMLAttributes { }! Decorator and then using it with @ Prop ( ) decorator from the user! Means you can use whereever @ assets/lib/components/my-google-maps as language, therefore we to. Decorator from the GitHub user, user will receive the name of the GitHub user, user will receive name. Only imported components will end up in the same distribution typescript we called as! Actually used on a page DOM ) shall be used or not handle browsers that do support... Which creates native Web components, @ ionic/core comes with over 100 components, but a one may. Was designed to lazy-load itself only when the component and run process is a native Web,., etc to decide which build to use so you may already familiar. With the componentProps in my-app component package.json file, and publishing,:! Table of contents only when rendered on the other hand is a native components.

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