将字符串拆分为键值对

Question

如果匹配 key: value ，我想用逗号分隔以下字符串。按逗号拆分一直有效，直到在 value 中遇到逗号为止

const string = "country: Kenya, city: Nairobi, population: 3.375M, democracy-desciption: Work in progress/ Not fully met, obstacles exist"

我想以这个结果结束：

 [[country: Kenya],
[city: Nairobi],
[population: 3.375M],
[democracy-description: Work in progress/ Not fully met, obstacles exist]]

先感谢您。

原文由 Nate 发布，翻译遵循 CC BY-SA 4.0 许可协议

Answer 1

您可以通过查看是否后面没有逗号和冒号来拆分字符串。

 var string = "country: Kenya, city: Nairobi, population: 3.375M, democracy-desciption: Work in progress/ Not fully met, obstacles exist, foo: bar, bar, bar";

console.log(string.split(/, (?=[^,]+:)/).map(s => s.split(': ')));

 .as-console-wrapper { max-height: 100% !important; top: 0; }

原文由 Nina Scholz 发布，翻译遵循 CC BY-SA 3.0 许可协议

Answer 2

拆分为键值对字符串数组，然后通过拆分每一对将该数组映射到数组数组：

 const table =
 string.split(",") //["key:value","key:value"]
  .map(pair => pair.split(":")); //[["key","value"],["key","value"]]

要从中构建一个对象：

 const result = Object.fromEntries(table);

//usable as:
console.log( result.country );

或使用地图：

 const result = new Map(table);

//usable as:
console.log( result.get("country") );

原文由 Jonas Wilms 发布，翻译遵循 CC BY-SA 4.0 许可协议