Object Literals

Object literals create key-value data structures. Keys can be string literals or computed expressions enclosed in brackets for dynamic key generation.

ObjectLiteral    = "{" [ ObjectEntry { "," ObjectEntry } ] "}" ;
ObjectEntry      = (StringLiteral | InterpolatedKey) ":" Expression ;
InterpolatedKey  = "[" Expression "]" ;

Interpolated keys are created where they don’t exist.

Valid Syntax:

{}
{ "name": "John", "age": 30 }
{ "key1": value1, "key2": value2 }
{ [dynamicKey]: "value" }
{ "nested": { "inner": true } }

Notes

• Keys must be string literals or computed using interpolated syntax [expression]
• Trailing commas are not permitted in object literals