整形转2进制后里面有多少个1

var input = 10140101;//传入的参数var count = 0;function getCount(ins){    if(ins == 0){         return count;    }       var ret = ins%2;    var shan = Math.floor(ins/2);        if(ret == 1){         count++;    }       return getCount(shan);}var ret = getCount(input);console.log(ret);

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