To concatenate an array into a single line, you can use the JSON.stringify() method

Question

To concatenate an array into a single line, you can use the JSON.stringify() method

Could someone help me with using JSON.stringify to keep my data on the same line in an array?

I am aiming for a format like this:

"alice": {
  "college": "Stanford",
  "favorite_color": "purple",
  "favorite_numbers": [7, 15]
},
"dave": {
  "college": "Harvard",
  "favorite_color": "red",
  "favorite_numbers": [5, 23]
}

But it's currently coming out as:

"alice": {
  "college": "Stanford",
  "favorite_color": "purple",
  "favorite_numbers": [
    7,
    15
  ]
},
"dave": {
  "college": "Harvard",
  "favorite_color": "red",
  "favorite_numbers": [
    5,
    23
  ]
}

Any suggestions would be appreciated.

javascript json stringify

Answer 1

Answer №1

You have the ability to utilize the replacer parameter:

var myObject = {
  "alice": {
    "school": "Stanford",
    "favorite_color": "purple",
    "favorite_numbers": [8, 21]
  },
  "dave": {
    "school": "Harvard",
    "favorite_color": "red",
    "favorite_numbers": [3, 17]
  }
};

console.log('Here is what you truly desire:');
console.log(JSON.stringify(myObject, function(key, value) {
  return (Object.prototype.toString.call(value) === '[object Array]') ? JSON.stringify(value) : value;
}, 4));

console.log('This is the output you get:');
console.log(JSON.stringify(myObject, null, 4));

For more information, check out the documentation: JSON.stringify()

Answer 2

You have the ability to utilize the replacer parameter:

var myObject = {
  "alice": {
    "school": "Stanford",
    "favorite_color": "purple",
    "favorite_numbers": [8, 21]
  },
  "dave": {
    "school": "Harvard",
    "favorite_color": "red",
    "favorite_numbers": [3, 17]
  }
};

console.log('Here is what you truly desire:');
console.log(JSON.stringify(myObject, function(key, value) {
  return (Object.prototype.toString.call(value) === '[object Array]') ? JSON.stringify(value) : value;
}, 4));

console.log('This is the output you get:');
console.log(JSON.stringify(myObject, null, 4));

For more information, check out the documentation: JSON.stringify()

To concatenate an array into a single line, you can use the JSON.stringify() method

Answer №1

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