Issue
This Content is from Stack Overflow. Question asked by Robert
How can I check if the something is nil and if its nil then use a different function to set value.
Integer($evm.root.attributes["dialog_cloud_network"])
can be nil in some cases and so I want to use a different function query_catalogitem(:cloud_network)
to set value.
Example:
cloud_network_id = Integer($evm.root.attributes["dialog_cloud_network"]) || query_catalogitem(:cloud_network).
The above doesn’t work because cloud_network_id
ends with value nil instead of getting the value from query_catalogitem(:cloud_network)
. How can I resolve this?
Solution
I would do
cloud_network_id = $evm.root.attributes["dialog_cloud_network"]&.to_i ||
query_catalogitem(:cloud_network)
This Question was asked in StackOverflow by Robert and Answered by spickermann It is licensed under the terms of CC BY-SA 2.5. - CC BY-SA 3.0. - CC BY-SA 4.0.