如何将JSON对象的两个值合并为单个JavaScript数组元素？

Hey there! Your approach is on the right track, but there's a small mistake in how you're accessing the object properties that's keeping it from working correctly. Let's fix that and also cover a more flexible approach for future cases.

First, the corrected version of your code #

Your JSON object uses key1 and key2 as property names, but you tried to access obj.value1 and obj.value2—that's the issue! Here's the fixed code:

// 假设countrylist是你的JSON字符串（注意要加引号包裹）
var countrylist = '{"key1": "value1", "key2": "value2"}';
var obj = JSON.parse(countrylist);
// 用正确的属性名key1和key2
var my_array = [obj.key1 + " " + obj.key2];

console.log(my_array); // 输出: ["value1 value2"]

A more flexible approach (for any number of keys) #

If you ever have more than two key-value pairs and want to merge all values into a single array element without hardcoding each property, you can use Object.values() to get all values at once, then join() to combine them with spaces:

var countrylist = '{"key1": "value1", "key2": "value2"}';
var obj = JSON.parse(countrylist);
// 获取所有值并拼接，再放入数组
var my_array = [Object.values(obj).join(" ")];

console.log(my_array); // 同样输出: ["value1 value2"]

This way, even if you add more keys later (like key3: "value3"), the code will automatically merge all values into one string in the array—no need to update the property references!

内容的提问来源于stack exchange，提问作者Fathah Cr