ES6實現 數組扁平化去重並排序

數組扁平化去重javascript var arr = [ [1, 2, 2], [3, 4, 5, 5,6], [6, 7, 8, 9, [11, 12, [12, 13, [14],15]]], 10 ]; var result = Array.from(new Set(arr.flat(Infinity))).sort((a, b) => { return a

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