如何将所有json值转换为String而不进行迭代 [英] How to convert All json values to String without iteration

问题描述

我有JSON，其中所有值都必须更改为字符串。值可以是数字，布尔值，未定义或null。

I have JSON in which all the values have to be changed to string. The values may be a number, boolean, undefined or null.

{
    "obj1": [{
        "n1": "n",
        "n2": 1,
        "n3": true
    },
    {
        "n1": "n",
        "n2": 1,
        "n3": null
    }]
}

预期结果是所有值都应格式化为字符串。

The expected result is all the values should be formatted as a string.

示例：

{
    "obj1": [{
        "n1": "n",
        "n2": "1",
        "n3": "true"
    },
    {
        "n1": "n",
        "n2": "1",
        "n3": "null"
    }]
}

通过迭代JSON对象，我们可以做到这一点，但有没有更简单的方法来做到这一点。

By iterating through the JSON object we can do this, but is there any simpler way to do this.

推荐答案

您可以 JSON.stringify 带有一个替换器函数并检查值是否为数字，然后取一个弦乐值，或者只取值。

You could take JSON.stringify with a replacer function and check if the values is a number, then take a stringed value, or just the value.

var object = { obj1: [{ n1: "n", n2: 1, n3: true }, { n1: "n", n2: 1, n3: null }] },
    json = JSON.stringify(object, (k, v) => v && typeof v === 'object' ? v : '' + v);

console.log(json);
console.log(JSON.parse(json));

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