Set constant with JSON types of non-structured values.
Source position: fpjson.pp line 97
| const ValueJSONTypes = [jtNumber, jtString, jtBoolean, jtNull]; | 
ValueJSONTypes is a set constant designating the JSON types that have a single value, i.e., all types except array or object.
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 | Set constant with JSON types of non-structured values that are not null. | |
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 | Set constant with JSON types of structured values. |