js 數組、數組對象去重、數組對象覆蓋

// 數組去重 var sDataArray = ['1', '2', '3', '2', '1', '2']; console.log([...new Set(sDataArray)]) // [ '1', '2', '3' ] // 字符串去重 var sDataString = 'acdaaaddss' console.log([...new Set(sDataString)]) // [

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