js获取数组中的最大值最小值

var tmp = [1,12,8,5];

var max = tmp[0];

for(var i=1;i<tmp.length;i++){ 

  if(max<tmp[i])max=tmp[i];

}

console.log(max);

var a = [1,2,3,5];

console.log(Math.max.apply(null, a));//最大值

console.log(Math.min.apply(null, a));//最小值

var a = [1,2,3,[5,6],[1,4,8]];

var ta = a.join(",").split(",");//转化为一维数组

console.log(Math.max.apply(null, ta));//最大值

console.log(Math.min.apply(null, ta));//最小值