Adding specific parameters to through for loop

Question

Being a beginner in Javascript and after failing with all the available solutions on this site, I am posting this question. I have a variable as given below:

var p = 
{
    "name": "Country",
    "entries": [{
        "value": "India",
        "synonyms": []
    },
    {
        "value": "USA",
        "synonyms": []
    }
   ]
};

If I have an array of hundred countries, how can I loop through entries of variable p and add hundred countries to it?

Why do you want to loop? p.entries.push(...moreCountries) would append all elements of moreCountries to p.entries. p only has two properties, so looping doesn't seem to me necessary? Either way, if you want help you should provide a complete example. That includes examples of the inputs and an example of the desired output. Also this is not JSON, it's an object literal. — Felix Kling
– Felix Kling, Commented Sep 10, 2017 at 15:37
When I say more specifically you can use the code as p.entries.push({"value" : i,"synonyms":array_variable}); — Jino Shaji
– Jino Shaji, Commented Sep 10, 2017 at 15:44

Felix Kling · Accepted Answer · 2017-09-10 17:32:18Z

1

In ES6 you can use spread argument for this task:

//...
var arrayOfCountries = [
  {
     "value": "Germany",
     "synonyms": []
  },
  {
    "value": "Russia",
    "synonyms": []
  }
]; 

p.entries.push(...arrayOfCountries);

Or if you are using ES5 or older try concat method:

// ...
p.entries = p.entries.concat(arrayOfCountries);

edited Sep 10, 2017 at 17:32

Felix Kling

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answered Sep 10, 2017 at 15:48

Ihor Sakailiuk

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Comments

Puneet Ahuja · Accepted Answer · 2017-09-10 15:42:32Z

0

You can loop through p.entries

e.g.

for ( var i = 0 ; i < p.entries.length ; i++){
var value = p.entries[i].value;
var synonyms = p.entries[i].synonyms;

}

answered Sep 10, 2017 at 15:42

Puneet Ahuja

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2 Comments

Phani Kumar M Over a year ago

OP is asking to add an array of countries to the existing p object.

CTD Over a year ago

Yes, I am asking how to add things into the array

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