CODEWITHSUNDEEP
javascriptarraysjavascript-objects
kingsdisease
kingsdisease

Reputation: 1

How to create arrays based on values from another array?

I have an array of objects. All objects have the same properties. I'm trying to find a way to create new arrays for each of the common id's. This is my array: `

var array = 
  [
    {
      id: "BG",
      qty: 100
    }, 
    {
      id: "BG",
      qty: 35
    }, 
    {
      id: "JP",
      qty: 75
    },
    {
      id: "JP",
      qty: 50
    }
 ];

`

I wan it to create arrays based on the id property. Based on the above array, I'm expecting 2 arrays for BG and JP.

I tried this but it creates an array with just the 2 id's const uniqueId = [...new Set(array.map(array => array.id))];

What I want my result to be is:

[{
  id: "BG",
  qty: 100
}, 
{
  id: "BG",
  qty: 35
}]
[{
      id: "JP",
      qty: 75
    },
    {
      id: "JP",
      qty: 50
    }
 ]

Upvotes: 0

Views: 213

Answers (1)

Andres Carrasquilla
Andres Carrasquilla

Reputation: 39

This can help you

var results = array.reduce(function(results, org) {
    (results[org.id] = results[org.id] || []).push(org);
    return results;
}, {})

I took it of: Group by Object ID's in Javascript

Upvotes: 1

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