Assigning values to a computed property in JavaScript?

Following is our object −

const customerDetails=[
   {customerFirstName: "David"},
   {customerLastName: "Miller"},
   {customerCountryName: "US"},
   {customerAge: "29"},
   {isMarried: false},
   {customerCollegeName: null}
];

Let’s assign values to a computed property using slice() along with map().

Example

const customerDetails=[
   {customerFirstName: "David"},
   {customerLastName: "Miller"},
   {customerCountryName: "US"},
   {customerAge: "29"},
   {isMarried: false},
   {customerCollegeName: null}
];
const newCustomerDetails =
customerDetails.slice(2,4).concat(customerDetails[5]).map(obj=>({
   propertyKey: Object.keys(obj)[0],
   propertyValue: Object.values(obj)[0]
}));
console.log(newCustomerDetails);

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

node fileName.js.

Here, my file name is demo135.js.

Output

This will produce the following output −

PS C:\Users\Amit\JavaScript-code> node demo135.js
[
   { propertyKey: 'customerCountryName', propertyValue: 'US' },
   { propertyKey: 'customerAge', propertyValue: '29' },
   { propertyKey: 'customerCollegeName', propertyValue: null }
]