Get an adjacent value in JSON array if value is found

Question

If I have this type of object returned in javascript (as a result of $get)

[
  {
    "id": "1",
    "username": "john"
  },
  {
    "id": "2",
    "username": "bill"
  }
]

How would I search for the username "john" and if it exists return his ID

Thanks

i.e.

$.get( baseURL + "users/")
  .done(function( data ) {

    var usernames = data.results;

});

There are various ways to do that but we need to know what you've tried first. We could help based on it. — Tân, Jun 16 '20 at 14:23

score 1 · Accepted Answer · answered Jun 16 '20 at 14:25

1

Use find():

var array =[
  {
    "id": "1",
    "username": "john"
  },
  {
    "id": "2",
    "username": "bill"
  }
];

var id = array.find(k=>k.username=='john')?.id;

console.log(id);

answered Jun 16 '20 at 14:25

gorak

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Get an adjacent value in JSON array if value is found

1 Answers1