is it possible to do simple calculation (addition and subtraction) inside templates.

[asma_90]

is it possible to make simple calculation inside the templates?
for example, I want the number of the replies only (not the number of posts) which means:
number of posts -1.

[PitaJ]

@asma_90 it can be possible by using a helper function

[asma_90]

I registered a hook, I wanto get data from the post (the data I want is post count) but somehow my function is not being fired. am I using the wrong filter ?

"hook": "filter:post.getPostData", "method": "replynum"

Thank you !

[asma_90]

I solved my problem, but without using a helper function. here is how I solved it:
$(window).on('action:topic.loaded', function (event, data) {
var replynum = data.postcount - 1;
console.log(replynum)
});

I have tested it and it works, every time a topic is loaded I can get the postcount.
However, I am still unable to know why my helper function is not being executed