[buckbova]

> http://mithril.js.org/comparison.html

> Vue's implementation cleverly hijacks array methods, but it should be noted that Javascript Arrays cannot be truly subclassed and as such, Vue suffers from abstraction leaks.

Can anyone who knows how vue is implemented explain this statement?

[rk06]

they are talking about limitations of change detection in Array [1]. It is technically true, but practically, it is not much (if you are aware of it)

[1] : http://vuejs.org/v2/guide/list.html#Caveats