Custom delimiter support in 'groupBy' pipe while grouping multiple fields

[shikhartanwar]

Custom delimiter as an additional optional argument in the groupBy pipe would be really helpful. Currently multiple fields are joined by _ while grouping on multiple fields but _ would not always be a unique delimiter and in that case the resultant map cannot be directly used.

[danrevah]

Did you mean that multiple fields are joined by underscore ("_")? and yes this makes sense if there's some properties with _ it won't always be unique.
I will add a custom delimiter as suggested.

[shikhartanwar]

Yes. I was referring to multiple fields getting joined by "_" only.

[danrevah]

I think that it might be better to also use : as default.
since "_" is commonly used as property name.
I will make the required adjustments.

[shikhartanwar]

Yes. That makes perfect sense. : or maybe | would be better options as the default delimiter.

[danrevah]

Default has been changed to |.
I've also added an option to change the delimiter.

https://github.com/danrevah/ngx-pipes#groupby
Release version: v1.3.2