string

in	out
"abc"	"abc"
123	"123"
0	"0"
-1	"-1"
11.11	"11.11"
[]	""
{}	""
null	""

int

in	out
20	20
"20"	20
11.11	11
11.6	11
0.1	0
-0.1	0
[]	0
{}	0
null	0
""	0

bool

in	out
true	ture
false	false
"true"	true
"false"	false
"1"	true
"0"	false
123	false
"123"	false
0.1	false
-0.1	false
[1]	false
["ching"]	false
[]	false
{}	false
null	false
""	false