Why:
Sometimes the latitude or longitude it passed to the map as *********
instead of the actual latitude or longitud. The asterisks are not a
string, breaking the whole array
https://github.com/consul/consul/issues/2380
What:
This commits skips invalid markers and displays the rest
How:
- Substituting the mysterious asterisks for null
(cleanInvestmentCoordinates)
- Validating the coordinates are numbers before trying to pain
them(validCoordinates)
- Adding a numeric function to validate the latitude and longitude
(isNumeric)
https://stackoverflow.com/questions/9716468/is-there-any-function-like-i
snumeric-in-javascript-to-validate-numbers#answer-9716488