Javascript convert comma seperated string of words to key value objects in array [duplicate]

Question

I need to convert a list of email to a key value object within an array. I start with "[email protected],[email protected],[email protected]" and I want to end up with

[
   {"to": "[email protected]"},
   {"to": "[email protected]"},
   {"to": "[email protected]"}
]

Here's what I've tried

var req = {
  query: {
    personalize:
      "[email protected],[email protected],[email protected]"
  }
};
var emailList = req.query.personalize;
var emailArr = emailList.split(",");
var emailObj = Object.assign({}, emailArr);
console.log(emailObj);

Here's what I ended up with

"0": "[email protected]"
"1": "[email protected]"
"2": "[email protected]"

After this I tried this one

var req = {
  query: {
    personalize:
      "[email protected],[email protected],[email protected]"
  }
};
var emailList = req.query.personalize;
var arr = emailList.split(",");
const res = arr.reduce((acc,curr)=> (acc[curr]='to',acc),{});
console.log(res)

This got me close, but backwards for what I wanted. Yielding a result like

"[email protected]": "to"
...

"[email protected],[email protected],[email protected]".split(',').map(to => ({to})) — Amir Popovich
– Amir Popovich, Commented Jun 29, 2022 at 15:26

Clark Weckmann · Accepted Answer · 2022-06-29 15:33:54Z

0

As Ivar and Amir pointed out in the comments, this solution works.

function mockTest() {
var req = {
  query: {
    personalize:
 "[email protected],[email protected],[email protected]"
  }
};
var emailList = req.query.personalize;
console.log(createToList(emailList))
}

mockTest();

function createToList(emailString) {
  return emailString.split(",").map(to => ({to}));
}

answered Jun 29, 2022 at 15:33

Clark Weckmann

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