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习题也在努力做呀。

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钮子壤

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

  var number = [];

  console.log(number);

  number = arr.filter(function (element, index, self){

    var i;

    if (element ===1) return false;

    for (i=2;i<element;i++){

       if (element % i === 0 ) {

       //console.log(element);

       return false;}

    }

    return true;

  });    

  console.log(number);

  return number;


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