es6 数组去重的方法

const array=[1,2,3,4,5,6,1,3,5,7]; new Set(array)    //    {1,2,3,4,5,6,7} [...new Set(array)]   // [1,2,3,4,5,6,7] Array.from(new Set(array))    // [1,2,3,4,5,6,7]

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