JS樂透程式範例

 

While迴圈

var lottery = [];

var n;

while (lottery.length<6) {

  n=Math.floor(Math.random()*49)+1;

  if (lottery.indexOf(n)===-1) {

    lottery.push(n);    

  }

}

console.log(lottery);

For迴圈

var lottery = [];

var n;

for(i = 0; i < 6; i++){

    n=Math.floor(Math.random()*49)+1;

    if (lottery.indexOf(n)===-1) {

    lottery.push(n);    

  }

}

console.log(lottery);