Vue is a progressive framework for building user interfaces. Unlike other monolithic frameworks, Vue is designed from the ground up to be incrementally adoptable. The core library is focused on the view layer only, and is very easy to pick up and integrate with other libraries or existing projects. On the other hand, Vue is also perfectly capable of powering sophisticated Single-Page Applications when used in combination with modern tooling and supporting libraries.
Getting started with Vue.js is extremely easy. Its source code is very readable, and the documentation is the only tutorial you'll ever need. You don't need external libraries. You can use it with or without jQuery. You won't need to install any plugins, though many are available. Hooking Vue.js up to existing code is very straightforward. There's no magic to Vue.js – it's Objects all the way down.
Vue.js does not make large assumptions about much of anything either. It really only assumes that your data will change.
But Vue.js comes with the perfect balance of what it will do for you and what you need to do yourself. Vue.js is always within reach, a sturdy, but flexible safety net ready to help you keep your programming efficient and your DOM-inflicted suffering to a minimum.