创建多个dimesion数组

Question

我需要这样的东西：

var fruits[1] = ["Banana", "Orange", "Apple", "Mango"];
fruits[2] = ["Banana"];
fruits[1].push("Lemon");
fruits[2].push("Orange");

但这不适用于javascript。

有没有办法在javascript中实现这种机制？

Answer 1

首先，将fruits本身初始化为数组

var fruits = [];
fruits[1] = ["Banana", "Orange", "Apple", "Mango"];
fruits[2] = ["Banana"];
fruits[1].push("Lemon");
fruits[2].push("Orange");

console.log(fruits);

Answer 2

您可以执行以下操作：

var fruits = []; //declared a blank array

fruits.push("Banana"); //adding 1st item
fruits.push("Orange"); //adding 2nd item
fruits.push("Apple");  //adding 3rd item
fruits.push("Mango");  //adding 4th item

//if you want to update any item then simply do the following
fruits[2] = "Lemon"