如何将两个数组组合为笛卡尔积? [英] How to combine two arrays as a cartesian product?

问题描述

我有

array1 = [1,2,3,4,5];
array2 = ["one","two","three","four","five"];

我想得到array3，其中array1的所有元素都带有array2的第一个(和其他)元素，等等.

I want to get array3 where all elements of array1 with first (and others) element of array2 and etc.

例如:

array3 = ["one 1", "two 1", "three 1", "four 1", "five 1", "one 2", "two 2", "three 2", "four 2", "five 2"...]

我知道我需要使用for循环，但是我不知道该怎么做.

I understand that I need to use for loop but I don't know how to do it.

推荐答案

您可以使用两个for循环:

You can use two for-loops:

var array1 = [1,2,3,4,5];
var array2 = ["one","two","three","four","five"];

var array3 = [];
for (var i = 0; i < array1.length; i++) {
    for (var j = 0; j < array2.length; j++) {
        array3.push(array2[j] + ' ' + array1[i]);
    }
}

console.log(array3);

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