Angular5：从值构建json

Question

I am trying to build a json from values so that I can push it to an object. I have two items as below.

var item1 = "2"
var item2 = "Student"

I am trying to build a json as below

{ "2" : "student"}

I tried couple of ways but ran out of ideas. Is there an easy way or any lodash method to do it.

Answer 1

使用ES6计算的属性，例如：

{ [item1]: item2 }

Answer 2

create a Array temp variable and put them on it like this:

var item1 = "2"
var item2 = "Student"
  let tmp = [item1, item2];
  console.log(JSON.stringify(tmp));

after stringify result is :

["2","Student"]

or this on :

var student = "2";
console.log(JSON.stringify({student}));

result is:

{"student":"2"}