How to extract multiple objects from string using javascript

Question

I want a solution to extract object & push into an array. but can not able to extract object because

const data = [ "userData": ["{ name: 'Test 1', age: '25'}, { name: 'Test 2', age: '26'}, { name: 'Test 3', age: '27'},"] ]

Tried code,

const test = data[0]['userData'];
const converted = JSON.parse(test);

Above code doesn't work.

Expected Output:

[
  {
    name: 'Test 1',
    age: '25'
  },
  {
    name: 'Test 2',
    age: '26'
  },
  {
    name: 'Test 3',
    age: '27'
  },
]

That happens because JSON.parse only accepts strings, and you are passing an array of strings. You must iterate through the array of strings and parse each element individually, and then push each result to an array. — Jorge Fuentes González
– Jorge Fuentes González, Commented Nov 28, 2022 at 11:48
Sure: stackoverflow.com/questions/3010840/… there is plenty of examples there. As a tip, the map answer should do the trick for you. I'm not going to add the exact code so you try to understand what is happening and how to overcome it, as an excercise, as it seems that you are learning and that's important ;-) — Jorge Fuentes González
– Jorge Fuentes González, Commented Nov 28, 2022 at 11:53
data format seems to be wrong. gives an error when pasted in console Uncaught SyntaxError: Unexpected token ':' — Nishant
– Nishant, Commented Nov 28, 2022 at 11:58
I know data format is wrong, but i can not change the format because data comes from the external resource. — Manoj Ghediya
– Manoj Ghediya, Commented Nov 28, 2022 at 12:01

user3425506 · Accepted Answer · 2022-11-29 01:50:37Z

1

The problem is in the way the json is formed. Try this:

const data = [ '{"userData": [{ "name": "Test 1", "age": 25}, { "name": "Test 2", "age": 26}, { "name": "Test 3", "age": 27}]}']
console.log(JSON.parse(data[0]))

edited Nov 29, 2022 at 1:50

user3425506

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answered Nov 28, 2022 at 11:58

Andriu1510

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5 Comments

Manoj Ghediya Over a year ago

I know data format is wrong, but i can not change the format because data comes from the external resource.

Andriu1510 Over a year ago

can u share example raw request from the external resource? @Manoj Ghediya

Manoj Ghediya Over a year ago

I have shared sample data in question description, const data = [ "userData": ["{ name: 'Test 1', age: '25'}, { name: 'Test 2', age: '26'}, { name: 'Test 3', age: '27'},"] ]

Andriu1510 Over a year ago

It's impossible to parse because if u cant change the format, the ':' results in error Uncaught SyntaxError: Unexpected token ':'

Manoj Ghediya Over a year ago

I know, but i need to fix this as soon as possible

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