# get()

Returns a value from the specified global value provider using property syntax.

## Signature

`get (String key, function callback)`

## Parameters

***key*:** Type: `String`. The data key to look up. For example, `"$Label.c.labelName"` for a custom label.

***callback*:** Type: `function`. The method to call with the result if a server trip occurs.

## Returns

**Type: `String`** The requested value.

**See Also**

- [set()](/docs/platform/aura-platform/guide/ref-jsapi-component-set.md)