Important: This documentation is about an older version. It's relevant only to the release noted, many of the features and functions have been updated or replaced. Please view the current version.
evaluate(pageFunction[, arg])
Returns the value of the pageFunction invocation.
| Parameter | Type | Defaults | Description | 
|---|---|---|---|
| pageFunction | function or string | Function to be evaluated in the page context. This can also be a string. | |
| arg | string | '' | Optional argument to pass to pageFunction | 
Returns
| Type | Description | 
|---|---|
Promise<any> | The value of the pageFunction invocation. | 


