How to use Handlebars ternary helper?

Question

Following this answer, I wrote a helper like

module.exports.register = function (Handlebars) {
    Handlebars.registerHelper('ternary', function(test, yes, no) {
        return test ? yes : no;
    });
};

I'm certain that the helper is loaded and being defined but can't figure out the syntax to use it. I tried using it like

<div>{{ternary(true, 'yes', 'no')}}</div>

but that gives an assemble build error

Warning: Parse error on line 10:
...<div>{{ternary(true, 'yes',
----------^
Expecting 'ID', 'DATA', got 'INVALID' Use --force to continue.

What is the proper syntax to use a helper like that?

Answer 1

Handlebars helpers: http://handlebarsjs.com/#helpers don't follow the JavaScript syntax in the templates. You can use them like this:

<div>{{ternary true "yes" "no"}}</div>