Action Elements

Assign Element

Element for modifying data model values

Assign Element

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The <assign> element modifies the data model:

<assign 
location="state.count"
action="increment"
/>

Prop	Type	Default
`location`	`string`	-
`action?`	`string`	-
`expr?`	`Expression`	-

Examples

Basic Assignment

<assign location="state.name" expr={({userInput}) => userInput.name} />

Increment Counter

<assign location="state.count" action="increment" />

Append to Array

<assign 
location="state.items" 
action="append" 
expr={({userInput}) => userInput.newItem} 
/>

Usage Notes

Use clear location paths that reflect the data structure
Consider using expressions for dynamic values
Choose appropriate action types for the operation
Validate data before assignment when necessary

Action Elements

Elements for executing actions and modifying state

Cancel Element

Element for canceling delayed events