Very interesting, thanks!

By the way, the for loop seems to be irrelevant to the invocation, (1,eval) just returns eval. (1,console.log)("hi") looks like it should work, except it raises an error. (1,2)+3 returns 5, however, and (1,console.log) returns the log function.

it's a performance thing. i forgot the details, but if you change the `(1,eval)` to `eval`, it's all much slower. something with the scope of the code that's being eval'ed, if i recall correctly.

(1,eval)('2*2') evaluates in the global context, so it may be slower I would think. Here's a really long and insanely detailed post about this odd feature: http://perfectionkills.com/global-eval-what-are-the-options/