It is able to write {{ myval.add:12 }}, {{ myval|add:value }} and even {{ myval|add:-7 }}.
However, I can't find out what I should type to add value * -1 like {{ myval|add:-value }}. This doesn't work, sadly.
It is able to write {{ myval.add:12 }}, {{ myval|add:value }} and even {{ myval|add:-7 }}.
However, I can't find out what I should type to add value * -1 like {{ myval|add:-value }}. This doesn't work, sadly.