JSONArray 到 JavaScript 中的逗号分隔字符串

Question

我有一个下面的 JSON

{
    "id": 1111,
    "numbers": [
        "00",
        "01",
        "02"
    ],
    "alphabets": [
        "a",
        "b",
        "c"
    ]
}

我想将此 JSON 数组转换为 JAVASCRIPT 中的字符串

预期 output：

{
    "id": 1111,
    "numbers": "00,01,02",
    "alphabets": "a,b,c"
}

请帮忙！！

Answer 1

Array join方法应该可以帮助您：

["1", "2", "3"].join(',') // "1,2,3" 

假设您不想修改原始 object，您可以从以下内容开始：

const data = {
    "id": 1111,
    "numbers": [
        "00",
        "01",
        "02"
    ],
    "alphabets": [
        "a",
        "b",
        "c"
    ]
}

const modifiedData = {
    id: data.id,
    numbers: data.numbers.join(','),
    alphabets: data.alphabets.join(',')
}

Answer 2

您可以使用Object.entries ，检查值是否为数组并加入，然后使用Object.fromEntries将其转换回 object ，例如：

 const data = { "id": 1111, "numbers": [ "00", "01", "02" ], "alphabets": [ "a", "b", "c" ] }; const result = Object.entries(data).map(([k, v]) => [k, Array.isArray(v)? v.join(): v]); console.log(Object.fromEntries(result));