let str = "{'a':'14','b':'90'}"
console.log(str)
console.log(typeof str)
let obj = JSON.parse(str)
console.log(typeof obj)
如下图:
let str = "{'a':'14','b':'90'}"
console.log(str)
console.log(typeof str)
let obj = JSON.parse(str)
console.log(typeof obj)
如下图: