Trying to use @index from 1 got this error

[techyrajeev]

could not find helper: 'math'

{{math @Index "+" 1}}. {{item}}

Is math helper functions not available? is there any way to use index from 1 instead of zero?

[jknack]

did you figure it out, right? There is no math helper, but you are safe to use {{@index_1}}

Also, I invite you to try: http://jooby.org

[techyrajeev]

I figured it out. I created a helper method to increment the index. But didn't know about {{@index_1}}, will give it a try. Thanks a lot for the tip.

[techyrajeev]

@jknack It is working well. One thing I noticed helpers have a registerDecorators. What is the use of decorators here ? Docs do not mention it.

[jknack]

Good, but yea you don't need a custom helper for +1 just use ``{{@index_1}}`

That's right there isn't good doc about decorators. It is for advanced users work with reference to handlebars.js is here #433 and here #442