I’m trying to create a web component button but when I add it in HTML the constructor() function is never being called. class MyButton extends HTMLButtonElement { title = “”; constructor({ …
I’m trying to create a web component button but when I add it in HTML the constructor() function is never being called. class MyButton extends HTMLButtonElement { title = “”; constructor({ …
Say I have an HTML tag that I define and select as follows:
let myTemplate = document.querySelector(‘…
Ideally, I’d like to create a stand-alone Angular 2 component (with tests) and then re-use it between two or three different Angular 2 sites. What are the good ways to achieve this? And a bonus question – do any 3rd party Angular 2 components exist? Answer UPDATE OFFICIAL Angular CLI https://angular.io/guide/creating-libraries You can create an angular2 component library (with tests) and then use it in any number of projects Here’s how to create an angular2 library https://makina-corpus.com/blog/metier/2017/how-to-create-an-angular-library with angular-cli https://medium.com/@nikolasleblanc/building-an-angular-4-component-library-with-the-angular-cli-and-ng-packagr-53b2ade0701e Then you can publish it for public use as well. If you want to keep it private, you can read
In React componentDidMount is used during the mounting phase, for example, one can setState and wrap it in componentDidMount. But, one can use setState directly and then render the component. In which cases should I prefer componentDidMount for a mounting phase? Answer It’s useful for several things: Starting ajax As the documentation says, doing subscriptions to things (for instance, if the component receives updates in some way that isn’t handled by its parent component, such as a stream of events from a web socket) Basically any time you want to kick off a process when the component is first mounted.
Consider this code: //js class FooBar extends HTMLElement { constructor(){ super(); } } customElements.define(‘foo-bar’, FooBar);
I have made my custom input element (modern text input for forms) into a web component. The .js file that I made to implement it has three parts. The HTML Template: const textInputTemplate = …
I have created a web component and I referenced image from my asset folder in there as below on local everything is fine, I published my custom element to firebase host and javascript, css and asset folder already exist on my host. then I tried to use my web component in another html peage as below and served this via a local http server (http-server) The problem is images are loading from ./assets/bot.png which doesn’t exist in in the hosted website, and they exists on my published website in firebase. I know that I can refer them by a full