Make a JSON array of objects out of an array of strings

Question

I have an array.

messages = ['hi', 'heelo', 'apple'];

Write a function to return:

[
    { msg: messages[0], type: 'A', label: 'msg' },
    { msg: messages[2], type: 'A', label: 'msg' },
    { msg: messages[2], type: 'A', label: 'msg' }
]

[0] and then double [2]? Doesn't make any sense. And these hardcoded type and label keys... — kind user
– kind user, Commented Nov 9, 2017 at 18:52
Possible duplicate of Convert array of strings to array of objects — Teemu
– Teemu, Commented Nov 9, 2017 at 18:57

doubleOrt · Accepted Answer · 2017-11-09 19:04:36Z

-1

You can use Array#map:

The map() method creates a new array with the results of calling a provided function on every element in the calling array.

var messages = ['hi', 'heelo', 'apple'];

var messages_1 = JSON.stringify(messages.map(function(el) {
  return {
    msg: el,
    type: "A",
    label: "msg"
  };
}));

console.log(messages_1);

edited Nov 9, 2017 at 19:04

answered Nov 9, 2017 at 18:52

doubleOrt

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