FOR

Executes a set of steps for a fixed number of iterations (numeric) or iterates over an array (items).

At a glance

• Category Control
• Version: 1.1.0
• Applications: all
• Scope: all

Config Options

Name	Description	Default	Required	Resolved	Constraints	Conditional Rules
var	The name of the variable to set with the current iteration value.	None	true	false	Pattern: ^[a-zA-Z_][a-zA-Z0-9_]*$ Length:1-∞	None
start	The starting value of the loop variable (numeric).	None	false	true	None	None
end	The ending value of the loop variable (numeric, inclusive).	None	false	true	None	None
by	Step increment for numeric loops (can be negative). If omitted, inferred from start/end (1 or -1).	None	false	true	None	None
items	An array to iterate over (e.g., an expression producing an array). If provided, numeric start/end are ignored.	None	false	true	None	Conflicts: start, end, by
do	Steps to execute in each iteration of the loop.	None	false	false	None	None

Step-Level Validation Rules

Require At Least One:

• At least one of: items, start

Require Together:

• All or none: start, end

Examples

For numeric loop from 1 to 5

 - step: FOR
   var: "i"
   start: 1
   end: 5
   do:
     - step: SET
       iteration: "{{ flowContext.i }}"

For-each over items

 - step: FOR
   var: "item"
   items: "{{ flowContext.myList }}"
   do:
     - step: SET
       lastItem: "{{ flowContext.item }}"

See Also

General Resources:

• Step Library Overview
• Configuration Basics
• Examples