> ## Documentation Index
> Fetch the complete documentation index at: https://help.dingtalk.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Script Node

> YiDA workflows let low-code developers use JavaScript in script nodes to inject static variables into business logic or format data. Use script nodes at design time to process input and intermediate data, then return results through the output object. You have two options: add a script node on the workflow design page, or add one in an automation flow design configuration. Script nodes support ES5 syntax only.

This topic explains how to add and use a script node, and how downstream nodes can consume the data it outputs.

## Use Cases

At design time, add a script node and write JavaScript to read input data, process intermediate data, and inject the results through the built-in output object. This enables scripted data processing within business flow orchestration.

## Access the Script Node

* Option 1: Edit a workflow form, open the workflow design page, and select **Developer node** > **Script node**.
* Option 2: Edit an app, go to **Integration & Automation**, select the target automation flow, open its design configuration, and add a script node.

## Use the Script Node

<Steps>
  <Step title="Add a script node" />

  <Step title="Write a JavaScript script" />

  <Step title="Test the code by entering test data in inputObj and clicking Test to view the output" />
</Steps>

## Consume Script Data

In downstream nodes, when you select a field type, the output fields from the preceding script node are available for selection.

## Notes

* The new script node replaces the previous Groovy node, making scripting accessible to a broader range of developers.
* Script nodes support ES5 syntax only. ES6 and later are not supported.
* Batch update node handling is not yet supported.
* Avoid data processing that requires large amounts of memory. Exceeding 10 MB (tentative; YiDA may adjust this limit) triggers a memory-overrun error. CPU usage exceeding 5 seconds (for example, from an infinite loop) triggers the automatic protection mechanism and raises an error.
* Network requests such as XHR and fetch are not supported. Top-level objects and functions such as `window`, `console`, and `print` are not supported.
* Defining functions inside the code block is supported.
* Do not add return statements outside a function.