More strange javascript behaviour

gistfile1.md

comparators

null < 1
//=> true
null < 0
//=> false
undefined < 1
//=> false
undefined < 0
//=> false
undefined < null
//=> false
undefined > null
//=> false
undefined == null
//=> true
undefined === null
//=> false

uh...

!+[]
//=> true
+!+[]
//=> 1
+true
//=> 1