How to convert an array into JSON format

Question

For Example:

var arr = ["tag1, tag2"]

I want to have the above array in JSON format as follows:

var arr = [
    {"name": "tag1"},
    {"name": "tag2"}
]

Can someone please help me out to solve this problem.

That is not "JSON format". Recommended reading: https://stackoverflow.com/questions/2904131/what-is-the-difference-between-json-and-object-literal-notation — JJJ, Mar 19 '18 at 10:09

score 0 · Answer 1 · answered Mar 19 '18 at 10:43

0

This should work:

var arr = ["tag1", "tag2"];
var json= [];
arr.forEach(e => json.push({name:e}));

answered Mar 19 '18 at 10:43

Sebastian Speitel

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score 0 · Answer 2 · answered Mar 19 '18 at 10:44

0

You input array should be like, Then you can use array.map to iterate over objects and create new objects

var arr = ["tag1", "tag2"]

DEMO

var arr = ["tag1", "tag2"];

var  newList = arr.map(v => {
  return Object.assign({}, { Name: v })
});
console.log(newList);

answered Mar 19 '18 at 10:44

Sajeetharan

216,225
63
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`Unexpected token =>` its giving error in angularjs – Ishwar Deoolkar Mar 19 '18 at 11:01
you must be missing a syntax – Sajeetharan Mar 19 '18 at 11:04
I have written correct syntax but it's giving same error – Ishwar Deoolkar Mar 19 '18 at 11:09
produce a demo using fiddle – Sajeetharan Mar 19 '18 at 11:10
my actual problem is I have two arrays and in that two array remove the duplicate values from that array. but both the array format is different one is `var l1 = [{'id': 2,'name':'tag1'}, {'id': 3, 'name':'tag2'}, {'id': 4, 'name':'tag3'}]` and another one is var l2 = ["tag5", "tag2", "tag3", "tag6"]; these are two different type of array is there – Ishwar Deoolkar Mar 19 '18 at 11:25
so I want to remove duplicate from values from this two array. – Ishwar Deoolkar Mar 19 '18 at 11:26

Hamzeen Hameem · Answer 3 · 2018-11-07T14:15:59.403

you could also do this on your array using map function:

var objArray = ["tag1", "tag2"].map(el => {
  return { name: el };
});
console.log(objArray);

if your problem is having 2 different arrays as you mentioned in a comment above & you want to remove duplicate tags, you could do this:

var l1 = [
  {'id': 2,'name':'tag1'}, 
  {'id': 3, 'name':'tag2'}, 
  {'id': 4, 'name':'tag3'}];

var l2 = [ "tag5", "tag2", "tag3", "tag6" ];

l2 = l2.map(el => {
  return { name: el };
});

// concat both the arrays
var src = l1.concat(l2);

// remove duplicates
var temp = [];
const unique = src.filter(item => {
  if (temp.indexOf(item.name) === -1) {
    temp.push(item.name);
    return item;
  }
});
console.log(unique);

score -2 · Answer 4 · answered Mar 19 '18 at 10:29

-2

var obj = { "name":"John", "age":30, "city":"New York"};

var myJSON = JSON.stringify(obj);

thats it...!

answered Mar 19 '18 at 10:29

Jay Patel

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2
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How to convert an array into JSON format

4 Answers4