判断一个数组中是否包含另一个数组

let maxList = ['1','2','3','4','5','6']

let minList = ['2','3']

let newList = minList .filter((val) => {

return maxList .indexOf(val)>-1

})

if(newList.length == minList.length  ){

  console.log("true")

}else{

  console.log("fasle")

}