[help] Subtract One Number from Another with JavaScript

Tell us what’s happening:

Your code so far

var difference = 12;

var subtract = 45 - 1;

Your browser information:

User Agent is: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/76.0.3809.100 Chrome/76.0.3809.100 Safari/537.36.

Link to the challenge:

They are trying to explain about subtract operation (minus symbol).
Change the 0 so the difference is 12 .
Change the 0 means: replace the number of 0 with some number to get the 12 as result.