What are some alternatives?
When comparing Vue.js and Svelte, you can also consider the following products
AngularJS - AngularJS lets you extend HTML vocabulary for your application. The resulting environment is extraordinarily expressive, readable, and quick to develop.
Polymer - Polymer is a library that uses the latest web technologies to let you create custom HTML elements.
Aurelia - Next gen JS framework written with ES6 and ES7. Integrates with Web Components. No external dependencies except polyfills.