将多维数组的内容转储到新的 JSON 变量中

Question

我有一个看起来像这样的多维数组：

products = '[["A","Apple","20","apple.html"],["B","Banana","13","banana.html"],["C","Cereal","45","cereal.html"],["D","Dishes","320","dishes.html"]]';

我正在尝试将其转换为 JSON 对象（至少我认为格式是这样的），但只有索引 1 和 3... 所以 products[0][1],products[0][3 ]。这就是我的结果需要的样子。

pList = [{value: 'Apple', data: 'apple.html'},{value: 'Banana', data: 'banana.html'}];

我该如何完成这项工作？

Answer 1

1. 通过JSON.parse将字符串解析为数组。

2. 使用Array.prototype.map() 从数组中获取值。

var products = '[["A","Apple","20","apple.html"],["B","Banana","13","banana.html"],["C","Cereal","45","cereal.html"],["D","Dishes","320","dishes.html"]]';

products = JSON.parse(products);

var pList = products.map(function(item) {
  return {
    value: item[1],
    data: item[3]
  };
});

console.log(pList);