在javascript中所有嵌套数组中找到最大和最小元素 [英] Find the Max and Min element out of all the nested arrays in javascript

问题描述

我有一个像这样的数组:

I have a array like so:

var arr = [[12,45,75], [54,45,2],[23,54,75,2]];

我想找出嵌套数组中所有元素中最大的元素和最小的元素:

I want to find out the largest element and the smallest element out of all the elements in the nested array:

最小应为:2

和

最大应为75

我尝试了以下功能，但它们不起作用:

I tried the functions below but they do not work:

    function Max(arrs)
    {
        if (!arrs || !arrs.length) return undefined;
        let max = Math.max.apply(window, arrs[0]), m,
            f = function(v){ return !isNaN(v); };
        for (let i = 1, l = arrs.length; i<l; i++) {
            if ((m = Math.max.apply(window, arrs[i].filter(f)))>max) max=m;
        }
        return max;
    }
    function Min(arrs)
    {
        if (!arrs || !arrs.length) return undefined;
        let min = Math.min.apply(window, arrs[0]), m,
            f = function(v){ return !isNaN(v); };
        for (let i = 1, l = arrs.length; i<l; i++) {
            if ((m = Math.min.apply(window, arrs[i].filter(f)))>min) min=m;
        }
        return min;
    }

给出的最大值为75，最小值为12.

It gives out Max as 75 and min as 12.

任何指导将不胜感激.

也在SO中尝试了其他答案，但没有帮助.

Also tried other answers in SO but none help.

在合并/展平JavaScript中的数组的答案? 解决了合并数组的问题.

The answer at Merge/flatten an array of arrays in JavaScript? resolves the problem of merging arrays.

我的问题是保持阵列不变并执行操作.

Whereas my problem is to keep the array as is and perform operations.

推荐答案

假设ES6

const arr = [[12,45,75], [54,45,2],[23,54,75,2]];

const max = Math.max(...[].concat(...arr));

const min = Math.min(...[].concat(...arr));

console.log(max);

console.log(min);

这篇关于在javascript中所有嵌套数组中找到最大和最小元素的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！