Sorry I actually purposefully didn't mention them because I didn't want it to seem like I was just trying to push my own favorite choice.
Here are some options:
Component libraries
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1) KnockoutJS (just data-binding, quite possibly the simplest I've seen)
2) Vue.JS (More complex, but one of the best sets of docs I've seen, fits in with the DOM model extremely well, few hacks, though I would have loved a simpler data-binding system)
3) Mithril.JS (super small, super fast, very simple. Transpilation tradeoff, it makes you just write the DOM as a JS function with elements like `m('div',[...])`. Have yet to use this one for a large project, but will very soon. Also has a little bit more support for the other thing you might need for a Single Page App.
Full fledged frameworks
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1) Ember (has been around a super long time, changes fast which is good and bad, and is great for large projects because it has a solid set of conventions)
No problem! Apologize for the delay I didn't see the responses till much later. There are more obviously lots more options, but those are my go-tos for now (I try to kick the tires on new libraries/frameworks as often as I can).
