[camus2]

Most of them are just CodeMirror / Ace stuffed that takes 90% of the pain of writing anything complicated in that domain, really. The CoreMirror author should take a fee for each product based on his lib, would become a millionaire( same guy who wrote TernJs , Eloquent Javascript , and few others, this guy's insane js developper, not sure how he manages to write this huge libraries in plane javascript and vim ).

[statictype]

I've heard of Codemirror but went and took a look again after reading this comment - I was surprised to see that Brackets, Lighttable and the Chrome DevTools source editor are built on top of it.

[munro]

Completely, this is why I love how modular that Javascript ecosystem is. Building a complex piece of software only takes 450 lines of glue [1]. Node-webkit makes building desktop applications a snap. The only bummer is it's slow, when I type I'll notice that 3 characters appear at once, it's distracting.

[1] https://github.com/jawerty/Hyro/blob/master/js/hyro.js

[seanmcdirmid]

Many of us go our own way for maximum flexibility. You'd be surprised how easy it is to write a modern live editor as long you are given the right tools for font rendering and extracting font metrics. The hard part is achieving the liveness, though.