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作业

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return arr.filter(function (x) {
       if(x == 1){
           return;
       }
       for (let i = 2; i<= Math.floor(Math.sqrt(x)); i++) {
           if (x % i === 0) {
               return;
           }
       }
       return x;
});

靠,又跳页了。。。

lmtooT_T

#3 Created at ... [Delete] [Delete and Lock User]

filter函数是自定义的还是数组自带的?


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