Shaurya Shubham a88f5c7ae7
Make str collect take an optional separator value (#2289)
* Make `str collect` take an optional separator value

* Make `str collect` take an optional separator value

* Add some tests

* Fix my tests
2020-08-02 19:29:29 +12:00
..
2020-07-22 06:41:49 +12:00