是否有类似fastjson的库？

const jsonStr = '{"name": "Alice", "age": 30}'; 
let jsonObj: Object = JSON.parse(jsonStr); 
let keyArr: string[] = Object.keys(jsonObj); 
let valueArr: string[] = Object.values(jsonObj); 
let entryArr: [string, string][] = Object.entries(jsonObj) 
for (let i = 0; i < entryArr.length; i++) { 
  console.log(keyArr[i] + ":" + valueArr[i]); 
}