I would like to know how to set checked to radio button using litelement. I have a object and for each object options, radio button is created.  For example, for id=SG two radio buttons are created, if no checked, set bank as default checked  else se...
I would like to implement lit-element-bootstrap package in lit-element.  I am getting following error in console, Failed to load module script: The server responded with a non-JavaScript MIME type of "text/html". Strict MIME type checking is...
Say I have a custom element. It consists of two parts, a button to open and toggle a menu and the menu itself. I want to position the menu directly below the button (position: absolute), but the button's height can be different depending on the t...
I have a simple check list with a delete button for each item. When I check the first item and then delete it, the list updates, deleting the item, but the check box of the next item is checked. The properties of the next item are correct.  Here'...
Is it possible to somehow trigger component re-render when the property of the observed object changes? I know that the component will re-render if I replace the object but it does not when I just change its property  class SomeComponent extends LitE...
Summary  I'm looking at TODO MVC Example with shadow DOM and customElements and in litRender.js there's a weird code in invalidate() function:'await 0'. I want to know what's the purpose of this code.  Background  I did a little s...
When composing snapshot tests, I need to do sequences of interactions. So for example, selecting the “merchandise” catalog looks like this:  const exploreMerchandiseCatalogAction = async element => {   await aTimeout(2);   element.service.send...
I want to make a drop-down menu and that when clicking on the input, the menu is displayed with a toggle that removes or places the 'hidden' class  I have this method  toggleMenu() {     this.classList.toggle("hidden"); }   And here t...
I have 2 lit-element components. The parent content is :  <s-sortablelist> ${this.renderChildren()} </s-sortablelist>   The renderChildren function is looping over an array property children = [1, 2] and creating <div> elements. The...
I have built a native web component called <expanding-textarea> which extends the functionality of <textarea>. I am able to set text content of the component like <expanding-textarea>content goes here</expanding-textarea> but...

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