Creating Your First Component
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Custom Elements Basics
- Define a Class:
class HelloWorld extends HTMLElement { connectedCallback() { this.innerHTML = `<h1>Hello World!</h1>`; } } - Register the Tag:
customElements.define('hello-world', HelloWorld);
SEO Optimization Tips
- Use semantic attributes:
<hello-world aria-label="Greeting"></hello-world> - Add JSON-LD markup for interactive components.