| json type \ dest type | bool | int | uint | float |string|
| --- | --- | --- | --- |--|--|
| number | positive => true
negative => true
zero => false| 23.2 => 23
-32.1 => -32| 12.1 => 12
-12.1 => 0|as normal|same as origin|
| string | empty string => false
string "0" => false
other strings => true | "123.32" => 123
"-123.4" => -123
"123.23xxxw" => 123
"abcde12
" => 0
"-32.1" => -32| 13.2 => 13
-1.1 => 0 |12.1 => 12.1
-12.3 => -12.3
12.4xxa => 12.4
+1.1e2 =>110 |same as origin|
| bool | true => true
false => false| true => 1
false => 0 | true => 1
false => 0 |true => 1
false => 0|true => "true"
false => "false"|
| object | true | 0 | 0 |0|originnal json|
| array | empty array => false
nonempty array => true| [] => 0
[1,2] => 1 | [] => 0
[1,2] => 1 |[] => 0
[1,2] => 1|original json|