Concat

What It Does

Combines two lists into a single list by joining them end-to-end. This is perfect for merging collections like color arrays, spacing scales, or any other grouped token sets.

Inputs

Name	Description	Type	Required
a	The first list to combine	List	Yes
b	The second list to add to the end	List	Yes

Outputs

Name	Description	Type
value	The combined list with all items from both lists	List

Array Concat Example

How to Use It

1. Drag the Array Concat node into your graph.

2. Connect your first list (like [Red, Blue]) to the "a" input.

3. Connect your second list (like [Green, Yellow]) to the "b" input.

4. Run the graph—your output will be [Red, Blue, Green, Yellow].

Tips

• Both lists must be of the same type (e.g., both colors or both numbers).

• Use multiple Concat nodes to combine more than two lists.

See Also

• Array Push: For adding just a single item to a list.
• Array Remove: For removing items from a list.

Use Cases

• Combining Token Collections: Merge a base set of tokens with extension sets (e.g., join core colors with accent colors).

• Building Complete Scales: Combine different parts of a scale (e.g., join negative and positive spacing values).

• Theme Management: Join multiple theme-specific token collections to create a comprehensive theme.