HarmonyOS map转json怎么实现？

Map转Json字符串代码如下：

const map = new Map([
  [‘name’, ‘张三’],
  [‘age’, ‘18’],
  [‘address’, ‘xian’],
]);

let jsonObject:Record<string,Object> = {}
map.forEach((value,key) => {
  if (key != undefined && value != undefined) {
    jsonObject[key] = value;
  }
})
let info:string = JSON.stringify(jsonObject);