function get_primes(arr){ return arr.filter(function(n){ if(n <= 1){return false} var temp = arr.filter(function(a){return a > 1 && a < n}) return temp.every(function(x){return (n % x !=0)}) }) }
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潘歪歪一脸不屑地说
function get_primes(arr){ return arr.filter(function(n){ if(n <= 1){return false} var temp = arr.filter(function(a){return a > 1 && a < n}) return temp.every(function(x){return (n % x !=0)}) }) }