JSON Array

JSON Array constructs an ordered list of values. Add dynamic inputs through the Inspector, and each one is automatically assigned a sequential index. Connect any value type — floats, strings, booleans, objects, or other arrays — and the node packages them into a JSON array.

Unconnected inputs produce null values in the array, preserving the index positions of all other elements.

Build a coordinate array:

Add three dynamic inputs. Connect float values 10.0, 20.0, 30.0. The output is:

[10.0, 20.0, 30.0]

Array of objects:

Connect JSON Object outputs to each dynamic input. The result is an array of objects:

[
    {"name": "A", "value": 1},
    {"name": "B", "value": 2}
]

Sparse array with null gaps:

If input [1] is unconnected while [0] and [2] have values:

[42, null, 99]

• Creating ordered data sets for downstream processing
• Building arrays of coordinates, color values, or configuration entries
• Assembling lists for OSC message bundles
• Feeding arrays into JSON Set to build nested structures

• The Length output is useful for driving loops or controlling iteration in other parts of your graph.
• Unconnected ports become null — remove unused ports to keep the array compact.
• Nest arrays within arrays by connecting one JSON Array output to another JSON Array input.
• Use JSON Array Get downstream to extract individual elements by index.