Basic JData Examples

1. Constants and scalars

1. Constants and scalars

A numerical value is typically unchanged when converting to JData annotation, and is directly stored in the JSON/UBJSON numerical value forms. For example

a=3

{"a":3}

[{][U][1][a][U][3][}]

Similar for a floating point number

a=3.14159

{"a":3.14159}

[{][U][1][a][D][3.15169][}]

There are a few special constants, namely "NaN", "Infinity" and "-Infinity"

a=nan

{"a":"_NaN_"}

a=inf

{"a":"_Inf_"}

a=-inf

{"a":"-_Inf_"}

Three special constants are directly supported by the JSON/UBJSON specifications, these constants are logical "True", logical "False" and "Null", they are stored as

a=true

{"a":true}

[{][U][1][a][T][}]

a=false

{"a":false}

[{][U][1][a][F][}]

a=null

{"a":null}

[{][U][1][a][N][}]