Think I’ve seen some bindings before with default values. But I can’t seem to find any examples now 
What I’m looking for is a way to set a default value, “diffWords”, for method here:
@module("react-string-diff") @react.component
external make: (~oldValue: string, ~newValue: string, ~method: string) => React.element =
"StringDiff"
You can specify a prop as optional using =?
next to the optional property.
@module("react-string-diff") @react.component
external make: (~oldValue: string, ~newValue: string, ~method: string=?) => React.element =
"StringDiff"
If you can to add a default from ReScript, you’ll need to make a small wrapper around your component.
1 Like
Thanks, that makes sense. And maybe my mind is playing tricks on me. But I think there’s another way to do this directly in the binding 
It is possible to fix the value in your binding using @as
, but then you can’t override it anymore:
@module("react-string-diff") @react.component
external make: (
~oldValue: string,
~newValue: string,
~method: @as("diffWords") _,
) => React.element = "StringDiff"
Playground example
4 Likes
Thank you, this was exactly the example I was looking for 