Svelte Web component

1. Clone this repo and install dependencies

     npm install

2. Run the application,

 npm run dev

3. Access the application on the url displayed in the logs

Explanation of the issue

Building a web component in Svelte, while importing third party libraries for example layercake .

As of now all components should have the tag,

  <svelte:options tag=”my-layercake-map” immutable={true} />

Since we do not have control over external libraries to have this tag, there is no way to import/make use of some of the wonderful libraries like layercake in our custom component.

This branch

You will get compilation error, No custom element 'tag' option was specified

bundles src/main.ts → public/build/bundle.js...
(!) Plugin svelte: No custom element 'tag' option was specified. To automatically register a custom element, specify a name with a hyphen in it, e.g. <svelte:options tag="my-thing"/>. To hide this warning, use <svelte:options tag={null}/>
node_modules/layercake/src/LayerCake.svelte
1: <script>
 ^
2: import { setContext } from 'svelte';
3: import { writable, derived } from 'svelte/store';
node_modules/layercake/src/layouts/Webgl.svelte
1: <script>
 ^
2: import { getContext, onMount, setContext } from 'svelte';
3: import { writable } from 'svelte/store';
node_modules/layercake/src/layouts/Svg.svelte
1: <script>
 ^
2: import { getContext } from 'svelte';
3: 
node_modules/layercake/src/layouts/Canvas.svelte
1: <script>
 ^
2: import { getContext, onMount, setContext } from 'svelte';
3: import { writable } from 'svelte/store';
node_modules/layercake/src/layouts/ScaledSvg.svelte
1: <script>
 ^
2: import { getContext } from 'svelte';
3: 
node_modules/layercake/src/layouts/Html.svelte
1: <script>
 ^
2: import { getContext } from 'svelte';
3: 
(!) Circular dependencies
node_modules/d3-interpolate/src/value.js -> node_modules/d3-interpolate/src/array.js -> node_modules/d3-interpolate/src/value.js
node_modules/d3-interpolate/src/value.js -> node_modules/d3-interpolate/src/object.js -> node_modules/d3-interpolate/src/value.js
created public/build/bundle.js in 1.6s