Objects

Objects are unordered collections of key-value pairs. They are written as comma-separated key: value pairs enclosed in curly braces:

{name: "Alice", age: 30}
{"status": "active", "count": 5}
{}                                    # Empty object

Object keys

Keys can be either unquoted identifiers or quoted strings:

var obj = {name: "Alice", age: 30}           # Unquoted keys
var obj2 = {"first-name": "Alice"}           # Quoted keys (required for special characters)

Use quoted keys when the key contains characters that are not valid in identifiers (such as hyphens or spaces).

Nested objects

Objects may be nested to any depth:

var user = {
    name: "Alice",
    address: {
        city: "Boston",
        zip: "02101"
    }
}

Creating nested structures on Data

When assigning nested properties on the Data context, intermediate objects must be created explicitly:

# INCORRECT - error if Data.level1 doesn't exist
Data.level1.level2.value = "x"

# CORRECT - create each level
Data.level1 = {}
Data.level1.level2 = {}
Data.level1.level2.value = "x"

# Or assign a nested literal directly
Data.level1 = {"level2": {"value": "x"}}

Truthiness

Empty objects {} are truthy. See Truthiness for details.