Syntax error Concatenate two arrays of objects and remove repeated data from an attribute in JavaScript?

Concatenate two arrays of objects and remove repeated data from an attribute in JavaScript?

For this, use map() along with find(). Following is the code −

Example

var details1 =
[
   {
      productDetails:
      {
         isSold: true,
         productId:101
      }
   },
   {
      productDetails:
      {
         isSold: true,
         productId:103
      }
   }
]
var details2 =
[
   {
      productDetails:
      {
         isSold: false,
         productId:101
      }
   }
]
var details3 = details1.map(details1Object=>{
   var newObject= details2.find(obj=>obj.productDetails.productId
   === details1Object.productDetails.productId)
   return newObject? newObject : details1Object
})
console.log(details3)

To run the above program, you need to use the following command −

node fileName.js.

Here, my file name is demo183.js.

Output

This will produce the following output −

PS C:\Users\Amit\javascript-code> node demo183.js
[
   { productDetails: { isSold: false, productId: 101 } },
   { productDetails: { isSold: true, productId: 103 } }
]
Updated on: 2020-09-14T06:39:13+05:30

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