Data Types

Tip

Since Bref supports JSON by default, its data types are exactly the same as JSON.

You can use the following 6 fundamental JSON data types in your Bref files.

Represents text values. Written inside double quotes ("...").
Supports escape characters (\\", \\n, \\t, etc.).


{ "title": "Bohemian Rhapsody" }

Represents integers or floating-point numbers.
The decimal separator is a dot (.).
Special values like NaN or Infinity are not supported.


{ "streams": 1980000000, "duration": 5.55 }

Represents logical values: true or false.


{ "is_favorite": true }

Represents a missing or unknown value.
It is not a string ("null" is different).


{ "album": null }

Represents a collection of key–value pairs.
Defined with curly braces {}.


{
  "title": "Bohemian Rhapsody",
  "duration": "5:55"
}

Tip

In Bref, when you use type definitions for objects, you don’t need to include the keys explicitly — only the values in the defined order.


:song { title, duration }
 
{
  "Bohemian Rhapsody", "5:55"
}: song

Represents an ordered list of values.
Defined with square brackets [].
The values can be of different data types.


[ "Rock", "Pop", "Jazz" ]