html
<script src="https://unpkg.com/@webcomponents/webcomponentsjs@1.3.4/bundles/webcomponents-sd-ce.js"></script>
script
class MyComponent extends HTMLElement {
connectedCallback() {
}
}
customElements.define('my-component', MyComponent);
html
<my-component></my-component>
script
class MyComponent extends HTMLElement {
constructor() {
super();
this.attachShadow({ mode: 'open' });
}
connectedCallback() {
}
}
customElements.define('my-component', MyComponent);
