Unable to join with an empty string separator

[sambrenner]

The join helper checks to make sure that the supplied separator is a string using isString in the handlebars-utils repo. Because isString also makes sure the supplied string is non-empty, this means that I am unable to use an empty string separator in a join block.

i.e. I would expect that this handlebars

{{join myArray ""}}

would produce

item1item2item3

when in fact it produces

item1, item2, item3

Source for this repo: https://github.com/helpers/handlebars-helpers/blob/master/lib/array.js#L297
Source for utils repo: https://github.com/helpers/handlebars-utils/blob/master/index.js#L490

Personally I think a function called isString shouldn't care whether the string is empty or not, but since this is the documented behavior of the function in handlebars-utils library, I've opened the issue here.

[jonschlinkert]

Hmm, I think we should check for an empty string, instead of undefined (assuming this is what it's checking for now) and do what you're describing. thanks for the issue