https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/max

const inputArray = [1,3,4,9,16,2,20,18]; const maxNumber = Math.max(…inputArray); console.log (maxNumber);

最简单的语法，使用新的展开操作符:

var arr = [1, 2, 3];
var max = Math.max(...arr);

来源:Mozilla MDN

辞职拯救:

Array.max = function( array ){
    return Math.max.apply( Math, array );
};

警告:由于在某些虚拟机上参数的最大数量低至65535，如果您不确定数组有那么小，请使用for循环。

应该很简单:

var countArray = [1,2,3,4,5,1,3,51,35,1,357,2,34,1,3,5,6];

var highestCount = 0;
for(var i=0; i<=countArray.length; i++){    
    if(countArray[i]>=highestCount){
    highestCount = countArray[i]
  }
}

console.log("Highest Count is " + highestCount);

试试这个

function largestNum(arr) {
  var currentLongest = arr[0]

  for (var i=0; i< arr.length; i++){
    if (arr[i] > currentLongest){
      currentLongest = arr[i]
    }
  }

  return currentLongest
}

一个递归的方法如何使用三元运算符

const findMax = (arr, max, i) => arr。长度=== I ?马克斯: findMax(arr, arr[i] > max ?Arr [i]: max， ++i) Const arr = [5,34, 2,1,6,7,9,3]; const max = findMax(arr, arr[0]， 0) console.log (max);