Overview
Set Variable is used to declare a variable and save it in variables in message, so that subsequent nodes can reference it in the form of msg.vars.get('name').
Method
Parameter configuration
| Parameter | Data Type | Description | Required | Default Value | Remarks |
|---|---|---|---|---|---|
| Variable name | string | Variable name. | Yes | None | - |
| Value | any | Specific value of the variable. | Yes | None | - |
| Type | string | Data type of the variable | Yes | string | - |
| Operation | string | Variable operation | No | None | This parameter is available only if a variable of list or dict type exists. |
Configuration page
Output
To reference variables, you need to use the msg.vars.get('company') expression.
The message output by the component is as detailed below:
message Attribute |
Value |
|---|---|
| payload | This attribute inherits the payload of the previous component. |
| error |
|
| attribute | This attribute inherits the attribute of the previous component. |
| variable | variable of the previous component and the variables added in the current component. |
Data preview
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