如何使用逗号分隔的元素成为对象 [英] How to make object of comma separated elements

问题描述

我正在使用CSV解析器，其中的数据在数组中，如

I am working on a CSV parser, where I have data in array like

["Jonas", "Sched ", "[e-mail]", "ph:34988934", "data 1,data 2", "data 3,data 4", "data 5, data 6"]

我要实现的目标是制作包含逗号(，)的array元素的对象数组.

What I want to achieve I want to make array of object of array element which contain comma (,).

预期结果:

 let array=  ["Jonas", "Sched ", "[e-mail]", "ph:34988934", items:[{name:data 1, temp:data
 2},{name:data 3, temp:data 4},{name:data 5, temp:data 6}]

推荐答案

您的第一步是从原始数组中提取内容.这可以通过解构分配来完成.:

Your first step is to pull things out of your original array. This can be done through a destructuring assignment:

const [name, company, email, phone, ...itemCsvs] = yourOriginalArray;

注意 ... itemCsvs ；将前四个项目之后剩余的所有内容分解为变量名称为 itemCsvs 的数组.

Notice the ...itemCsvs; that destructures anything remaining after the first four items into an array with the variable name itemCsvs.

itemCsvs 中的每个项目看起来都以逗号分隔.您可以使用 split 方法将它们转换为字符串数组:

Each item in itemCsvs looks like comma-separated pairs. You can use the split method of those strings to convert them to string arrays:

const itemPairs = itemCsvs.map(str => str.split(','));

itemPairs 现在是字符串数组的数组.

itemPairs is now an array of string arrays.

[
  ["data1", "data2"],
  ["data3", "data4"],
  ["data5", "data6"]  
]

然后将它们转换为对象就像再次映射一样简单:

Converting these into objects is then as simple as mapping again:

const items = itemPairs.map(([name, temp]) => ({ name, temp }));

现在，您只需重新组装各个部分即可.为了更紧凑地组合在一起:

Now you just reassemble the pieces. To put things together more compactly:

const originalData = [
  "Jonas", "Sched ", "[e-mail]", "ph:34988934",
  "data 1,data 2", "data 3,data 4", "data 5, data 6"
];

const [name, company, email, phone, ...itemCsvs] = originalData;

const result = {
  name, company, email, phone,
  items: itemCsvs.map(item => {
    const [name, temp] = item.split(',');
    return { name, temp };
  })
};

console.log(result);

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