Simple understandable solution using js methods
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```\n/**\n * @param {number[]} nums\n * @return {number[]}\n */\nvar distinctDifferenceArray = function(nums) {\n  let arr=[]\n    for(let i=0;i<nums.length;i++){\n          let val=new Set(nums.slice(0,i+1))\n          let str = new Set(nums.slice(i+1))\n          arr.push(val.size-str.size)\n      }\n return arr\n\n    \n};\n```
['JavaScript']