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| List<int> listWithoutDuplicate = [1,2,3,4]; | |
| List<String> listWithDuplicate = ['a','b','a']; | |
| Map<dynamic,int> frequencyCount(List<dynamic> itemList){ | |
| Map<dynamic,int> uniqueList = {}; | |
| for(var item in itemList){ | |
| if(uniqueList.containsKey(item)){ | |
| uniqueList[item] = uniqueList[item]! + 1; | |
| } | |
| else{ | |
| uniqueList[item] = 1; | |
| } | |
| } | |
| return uniqueList; | |
| } | |
| void main() { | |
| frequencyCount(listWithoutDuplicate).forEach((key,value){ | |
| print([key,value]); | |
| }); | |
| print('*********'); | |
| frequencyCount(listWithDuplicate).forEach((key,value){ | |
| print([key,value]); | |
| }); | |
| } |
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