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title: setParam()
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---

# setParam()

Sets a single parameter for an action. Use parameters to pass data to an Apex action.

## Signature

`setParam (String key, Object value)`

## Parameters

**_key_:** Type: `String`. The parameter name.

**_value_:** Type: `Object`. The parameter value.

**See Also**  


-   [Calling a Server-Side Action](https://developer.salesforce.com/docs/platform/aura-platform/controllers-server/controllers-server-actions-call.md)