Crockford is releasing a tool which is compatible with his opinions, not with JavaScript. All browsers execute that code fine, present and past, and at least for the next decade or so.
Crockford can be an arrogant ass about this stuff, that's why jshint exists, because not agreeing with Crockford does not mean bad JavaScript, no matter what he would have you believe
Crockford can be an arrogant ass about this stuff, that's why jshint exists, because not agreeing with Crockford does not mean bad JavaScript, no matter what he would have you believe