For Loop Node in Pathways

The For Loop node in Pathways is used to execute a sequence of tasks for a specified number of iterations. It enables the dynamic repetition of processes within a defined range. Below are the configurable options for the For Loop node:

Configuration Options

Name
- Specify a unique name for the For Loop node to identify it in your workflow.
Variable Name
- Define the name of the loop variable that will hold the current iteration value during each loop cycle.
From
- Set the starting value of the loop.
- The value can be configured using either Handlebars Template or Script expressions, selectable in the dropdown.
To
- Define the ending value of the loop.
- Similar to the From field, the value can be configured using Handlebars Template or Script expressions.
Inclusivity
- Choose whether the ending value (To) is inclusive or exclusive:
  - < To (exclusive): Iterations will stop before the specified ending value.
  - <= To (inclusive): Iterations will include the specified ending value.

Usage Scenarios

Performing a repetitive task, such as data transformation or calling an external service multiple times.
Iterating over a range of numbers to generate incremental values or calculations.
Defining a custom workflow that requires controlled repetition with dynamic start and end values.

Validation Notes

Ensure the loop variable is unique within the workflow to avoid conflicts.
Carefully configure the From and To fields with valid expressions to prevent infinite loops or errors.
The inclusivity option determines the exact number of iterations and should align with your workflow's requirements.

Example Configuration

Variable Name: i
From: 1 (using Script)
To: 10 (using Handlebars Template)
Inclusivity: < To

In this setup, the loop will iterate from 1 to 9, executing the defined tasks for each value of i.

This configuration ensures flexibility while maintaining ease of use, allowing users to build complex workflows efficiently.