> ## 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 script nodes to write JavaScript for capabilities such as static variable insertion and data formatting within business logic. This article covers the use cases, usage, and considerations for script nodes.

This topic walks through how to add a script node in YiDA workflow and integration & automation flow designers, write JavaScript within it, and consume its output in downstream nodes.

## Use Cases

During the design phase, add a script node and write JavaScript to read values from input data, process intermediate data, and inject the result through the built-in output object. This delivers scripted data processing within business flow orchestration.

## Access the Script Node

* Method 1: Edit the workflow form > Open the workflow design page > Select Developer node > Script node.
* Method 2: Edit the app > Integration & automation > Select the target automation flow and open its design configuration, then add a script node.

## Use the Script Node

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

  <Step title="Write the JavaScript" />

  <Step title="To test the code, enter test data in inputObj and click Test to view the output" />
</Steps>

## Consume Script Data

In any node downstream of the script node, when you select a field type, the fields exposed by the preceding script node's output appear in the list.

## Considerations

* The new script node replaces the previous Groovy node and appeals to a broader developer audience.
* The script node supports ES5 syntax only; ES6 and later syntax is not supported.
* Batch update node processing is not yet supported.
* Do not process data in high-memory scenarios. Exceeding 10 MB (currently set to 10 MB on a tentative basis; YiDA will adjust this based on real-world conditions) triggers a memory limit error. If CPU usage exceeds 5 seconds (for example, when an infinite loop is written), the automatic protection mechanism raises an error.
* Network requests via xhr and fetch are not supported, and top-level objects and functions such as window, console, and print are also unavailable.
* Defining functions inside code blocks is supported.
* Do not add return statements outside of functions.