PASS Valid key - new Date() 
PASS Valid key - new Date(0) 
PASS Valid key - [] 
PASS Valid key - new Array() 
PASS Valid key - ["undefined"] 
PASS Valid key - Infinity 
PASS Valid key - -Infinity 
PASS Valid key - 0 
PASS Valid key - 1.5 
PASS Valid key - 3e38 
PASS Valid key - 3e-38 
PASS Valid key - "foo" 
PASS Valid key - "\n" 
PASS Valid key - "" 
PASS Valid key - "\"" 
PASS Valid key - "\u1234" 
PASS Valid key - "\u0000" 
PASS Valid key - "NaN"