Convert object to string while join array in javascript

Question

I want to convert array to string & if array contain object then need to convert in string.

array = [
  'a',
  'b',
  { name: 'John doe', age: 25 }
]

My code:

const convertedArray = array.join(' ');

Output like below:

a b "{"name":"john", "age":22, "class":"mca"}"

How the class property should be created? From your snippet it's unclear. If you want to just convert object to string - you can use JSON.stringify(object) — Klymenko Kyrylo
– Klymenko Kyrylo, Commented Nov 11, 2021 at 7:42

brk · Accepted Answer · 2021-11-11 07:43:12Z

2

You can use array reduce function. Inside the reduce callback check if the current object which is under iteration is an object or not. If it is an object then use JSON.stringify and concat with the accumulator.

const array = [
  'a',
  'b',
  {
    name: 'John doe',
    age: 25
  }
];

const val = array.reduce((acc, curr) => {

  if (typeof curr === 'object') {
    acc += JSON.stringify(curr);
  } else {
    acc += `${curr} `

  }


  return acc;
}, '');
console.log(val)

Using JSON.stringify on the entire array will have starting and ending [ and ] respectively, which is not what you are looking

const array = [
  'a',
  'b',
  {
    name: 'John doe',
    age: 25
  }
];

console.log(JSON.stringify(array))

answered Nov 11, 2021 at 7:43

brk

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Comments

Shreekesh Murkar · Accepted Answer · 2021-11-11 08:00:25Z

0

Simple ! Try following :

var arr = [
  'a',
  'b',
  { name: 'John doe', age: 25 }
]

var newArr = arr.map(i => typeof i === "object" ? JSON.stringify(i) : i)

console.log(newArr)

output :

['a', 'b', '{"name":"John doe","age":25}']

answered Nov 11, 2021 at 8:00

Shreekesh Murkar

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