题解 | #双色球机选一注#

/**

• 测试不通过是生成随机数时耗费了时间

• /
  function randomFn() {
  var divTwoArr = document.getElementsByClassName("balls-wp");
  var arr1 = newRandomNumbersWithNoRepeat(1, 33, 6, divTwoArr[0].children);
  var arr2 = newRandomNumbersWithNoRepeat(1, 16, 1, divTwoArr[1].children);
  console.log(arr1 + '|' + arr2)
  return arr1 + '|' + arr2;
  }
  function newRandomNumbersWithNoRepeat(start,end,size, nodeList){
  var para=[];

  for(var i=0;i<size;i++){

     var index = Math.floor(Math.random() * (end - i))
     para.push({
         node: nodeList[index],
         value: nodeList[index].innerHTML
     });
     nodeList[index].parentNode.removeChild(nodeList[index]);

  }

  return para.sort((val1,val2) => {

      return Number(val1.value)-Number(val2.value);

  }).map((item, index) => {

     item.node.classList.add('active');
     nodeList[index].parentNode.insertBefore(item.node,nodeList[index]);
     return item.value;

  }).join(',')

}