`carMakesMap.put(ch, carMakes.groupBy { it.name.fi...
# getting-startedo
oday
01/11/2018, 9:03 AMcarMakesMap.put(ch, carMakes.groupBy { it.name.first() }.filter { it.key == ch })oday
01/11/2018, 9:03 AMcarMakesMap.put(ch, carMakes.groupBy { it.name.first() }.filter { it.key == ch })