createCommand

createCommand

Create a Command from a given function, for use with ViewModels. A Command is a function with an extra canExecute observable property to determine whether the command can be executed. When executed, a Command function will check the value of canExecute and throw if false. It also provides events for when a command has been or is about to be executed.

Parameters:
Name Type Argument Default Description
func Function The function to execute.
canExecute Boolean | Observable <optional>
true A boolean, or observable, indicating whether the function can currently be executed.
Throws:
DeveloperError : func is required.
Source: