Dart Simple Solution!
Intuition\n Describe your first thoughts on how to solve this problem. \n\n# Approach\n Describe your approach to solving the problem. \n\n# Complexity\n- Time 
# Intuition\n<!-- Describe your first thoughts on how to solve this problem. -->\n\n# Approach\n<!-- Describe your approach to solving the problem. -->\n\n# Complexity\n- Time complexity:\n<!-- Add your time complexity here, e.g. $$O(n)$$ -->\n\n- Space complexity:\n<!-- Add your space complexity here, e.g. $$O(n)$$ -->\n\n# Code\n```\nclass Solution {\n  bool digitCount(String num) {\n\n    bool res = true;\n    for(int i = 0 ; i< num.length ; i++){\n        int count = 0;\n        for(int j = 0 ; j< num.length ; j++){\n            int val = int.parse(num[j]);\n            if(i == val){\n                count++;\n            }\n        }\n        int t = int.parse(num[i]);\n        if(count != t){\n            res= false;\n        }\n    }\n    return res;\n  }\n}  \n```
['Dart']