js数组中随机取值

数组中随机取值 

 let aa=[1,2,3,4,5,6,7,8];
     let result= Math.floor(Math.random() * aa.length);
     console.log(result)

1到100随机数获取

 let result=Math.floor((Math.random()*100)+1)
       console.log(result)