pass int into array index

[rclod]

I would like to be able to pass an variable of type int into an array index.

jq --arg INDEX 0 '.device_icons[$INDEX].width'

Ideally I would replace 0 with ${INDEX} in my code so that I can use this inside a loop, but even the snippet above gives me an error:

"jq: error: Cannot index array with string"

Is there a way to explicitly cast a "string" as an int?

[nicowilliams]

Use '.device_icons[$INDEX | tonumber].width'.

[rclod]

Great, thanks!