# Alphanumeric Scale

### What It Does

The Alphanumeric Scale node generates combined letter-number identifiers (like A1, B2, C3) based on provided indices. It's useful for creating hierarchical naming systems with both alphabetic and numeric components.

### Inputs

| Name         | Description                                            | Type    | Required |
| ------------ | ------------------------------------------------------ | ------- | -------- |
| Letter Index | Letter index (0 = A, 1 = B, etc.)                      | Number  | Yes      |
| Number Index | Number index (0 = 1, 1 = 2, etc.)                      | Number  | Yes      |
| Uppercase    | Output letter in uppercase (true) or lowercase (false) | Boolean | No       |
| Prefix       | Optional text to add before the alphanumeric value     | String  | No       |
| Suffix       | Optional text to add after the alphanumeric value      | String  | No       |

### Outputs

| Name  | Description                                                      | Type   |
| ----- | ---------------------------------------------------------------- | ------ |
| Value | The generated alphanumeric value with optional prefix and suffix | String |

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### How to Use It

1. Drag the Alphanumeric Scale node into your graph.
2. Connect numbers to the "Letter Index" (for e.g., 0 for A) and "Number Index" inputs (for e.g., 0 for 1), or set them directly.
3. Configure optional inputs like case preference and prefix/suffix text.
4. The node will output a combined letter-number identifier (like "A1", "b2", etc.).

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### Tips

* Letter indices are clamped to the English alphabet range (0-25).
* Number indices automatically have 1 added (so index 0 produces "1").
* Combine with Count nodes to generate sequential alphanumeric identifiers.

### See Also

* [**Alphabetic Scale**](https://documentation.tokens.studio/graph-engine/available-nodes/naming/alphabetic-scale): For generating only alphabetic identifiers.
* [**Numeric Scale**](https://documentation.tokens.studio/graph-engine/available-nodes/naming/numeric-scale): For generating only numeric identifiers.

### Use Cases

* **Grid Systems**: Create cell identifiers for design grids (A1, A2, B1, B2).
* **Variant Naming**: Organize component variants with hierarchical identifiers.
* **Section Numbering**: Create section identifiers for design documentation.