Sometimes, we want to create object from array with JavaScript.

In this article, we’ll look at how to create object from array with JavaScript.

How to create object from array with JavaScript?

To create object from array with JavaScript, we call the Object.fromEntries method.

For instance, we write

const dynamicArray = ["2007", "2008", "2009", "2010"];
const obj = Object.fromEntries(
  dynamicArray.map((year) => [
    year,
    {
      something: "based",
      on: year,
    },
  ])
);

console.log(obj);

to call dynamicArray.map with a callback that maps each entry to an array that has the key and value respectively.

Then we call Object.fromEntries with the array to return an object with the year values as the keys and the objects as the values.

Conclusion

To create object from array with JavaScript, we call the Object.fromEntries method.