"hello"
#"foo"
#"***"
42
3+4
s = "abc"
s
o = {}
o
o
o.x = 42
o.x

"checkpoint 1"

{ prop1 : 12+2 }

"checkpoint 2"

{ prop1 : 12+2 }.prop1

"checkpoint 3"

myObj = { prop1: 12+2, prop2: { subProp1: "hey", subProp2: --12 } }
myStr = "prop1"
myObj[myStr]
mySym = #prop1
myObj[mySym]

"checkpoint 4"

myObj.prop2.subProp1

myObj.undefinedProp
myObj[#undeinedProp]

myObj.foo = 123
myObj.prop2.subProp2

myObj.prop2.subProp2 = 42
myObj.prop2.subProp2

"checkpoint 5"

myObj[42]
myObj[42]=666

"checkpoint 6"

myObj[42] = 666

"checkpoint 7"

myObj[42]

exit

"checkpoint 8"

sys = {}

"checkpoint 9"

sys.id = "i am sys obj"

"checkpoint 10"
sys.bye = exit

"checkpoint 11"

sys.bye(1,2,3)