My requirement is how to detect the device level notification on/off in android device using javascript (don't use any kind of plug-in only you can use plug-in if this plugin support to PWA application).  As per if notification off I need to show...
Polymer 3 uses import to load external Javascript. For example  import {GoogleCharts} from 'google-charts';   However, it seems for this to work, the external library should use exports.  I am trying to use mapbox-gl.js library. This library,...
I am learning polymer3.x. I made a dummy polymer element. Now i wanted to know how to publish online and use it in some other framework(eg: angular app).  I completed the requirements as mentioned in https://www.webcomponents.org,   included License...
I'm trying to understand/implement two way attribute binding in a Polymer 3 web component. I've got the following code:   import {html, PolymerElement} from '@polymer/polymer/polymer-element.js';   class CustomInputComponent extends P...
I'm new to both Polymer and Webpack and trying to work out how to get the polymer-webpack-loader transpiling correctly. According to the new Polymer 3.x way of importing HTML into JS (Polymer 2.x was the other way round), I've created a separ...
I am using this polymer-redux repo from github in my examples:     https://github.com/tur-nr/polymer-redux/tree/dev/v2.x   I have the redux-todo component which connects the todoApp with the redux store. I also created a mixin from where I would like...
Is there a way to create a custom event in in Lit-Element/Polymer, such as a mouse-over event? I've been searching for this a while now, but I can seem to find a way of doing it. I know about events in Lit-Element, like @click, but nothing about...
I am working with lit-element 2.0 and I am having an issue where I am getting an error code   Uncaught TypeError: Cannot read property 'querySelectorAll' of undefined  this is the code that is generating the error          console.log(this._r...
I'd like to know how to implement noUiSlider in a web component like Polymer 3/LitElement, I tried the below code which got an error as nouislider.create is not function and the server ended with a response as non-JavaScript MIME type of "tex...
I'm having issues specifically with IE11. This code works fine in Chrome/Firefox/Edge. I don't see what I am doing that would cause this to not work.  Here is the part of my polymer element's shadow dom that is breaking:    <template i...

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