A clever way to type <ESC> with Vim <alt-;>

In Vim, ESC is a common key, but we need to move so much to touch it, so how can we use it more conveniently?

There are a lot of methods on the net, alt-[and DF Key mapping is the two methods I have used, now let's talk about their problems,

DF Key mapping problem is waiting! Every time you press the D key, you bother me for a while! Can't bear

Alt-[is much better, but there is still a sense of delay after the press.

Then the new method appeared alt-; Do not need key mapping, directly to play out on the use of meta-key mechanism, a esc+; command, on behalf of the ESC command, convenient!

Of course, if still feel trouble, then change the key value bar, put a key to kill, I think alt two keys a bit redundant, haha

A clever way to type <ESC> with Vim <alt-;>