How to convert an Array of Objects into a single Objects

Question

How can I convert an array that contains multiple objects to a single object

I want to convert something like this :

    [

      {
        'Kyber': {tokenSymbol: 'DAI', avgPrice: 1}
      },
      

      {
       'Bamboo Relay': {tokenSymbol: 'DAI',avgPrice: 1}
      }
   
    ]

To something like this :

{
    'Kyber': {tokenSymbol: 'DAI', avgPrice: 1},
   'Bamboo Relay': {tokenSymbol: 'DAI',avgPrice: 1}
}

Simply iterate the array and add the properties of each object to a single result. What have you tried? Where are you stuck? — user12407908
– user12407908, Commented Jul 17, 2020 at 23:57
Can an object have multiple key-value pairs? What should be done in that case? — ibrahim mahrir
– ibrahim mahrir, Commented Jul 18, 2020 at 0:01

Mister Jojo · Accepted Answer · 2020-07-18 00:38:16Z

3

use Array.reduce

const data = 
        [ { 'Kyber': { tokenSymbol: 'DAI', avgPrice: 1} } 
        , { 'Bamboo Relay': { tokenSymbol: 'DAI', avgPrice: 1} } 
        ] 
const result = data.reduce((a,c)=>
        {
        for (const [k,v] of Object.entries(c)) a[k]={...v} 
        return a
        }, {})

edited Jul 18, 2020 at 0:38

answered Jul 18, 2020 at 0:13

Mister Jojo

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hgb123 · Accepted Answer · 2020-07-18 00:14:06Z

0

You could achieve that by iterate through the array of object, and for each object, merge that object to the result object. Below solution could help you

const data = [
  {
    Kyber: { tokenSymbol: 'DAI', avgPrice: 1 }
  },
  {
    'Bamboo Relay': { tokenSymbol: 'DAI', avgPrice: 1 }
  }
]

const res = {}
data.forEach(obj => {
  Object.assign(res, obj)
})

console.log(res)

answered Jul 18, 2020 at 0:14

hgb123

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