What is the purpose of underline sign using (_) { } in Flutter?
2,128
Its a variable name and I am using _
when i dont wanna use parameter. Normally _
used for private
, but in this case its not about private
.
Comments
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Stahp over 1 year
I'm learing to Mock dependencies using Mockito in Flutter from https://flutter.dev/docs/cookbook/testing/unit/mocking guide.
I don't understand a following line:
when(client.get('https://jsonplaceholder.typicode.com/posts/1')) .thenAnswer((_) async => http.Response('{"title": "Test"}', 200));
What underline sign does in
(_) {}
exactly? From what I've learned()
is used to pass arguments that need to be used inside{}
body. What are we axactly passing to function when writing_
?