js create an object from array code example

Example 1: convert array to object javascript

const convertArrayToObject = (array, key) =>
  array.reduce(
    (obj, item) => ({
      ...obj,
      [item[key]]: item
    }),
    {}
  );

Example 2: js create object from array

[
  { id: 10, color: "red" },
  { id: 20, color: "blue" },
  { id: 30, color: "green" }
].reduce((acc, cur) => ({ ...acc, [cur.color]: cur.id }), {})

//output: 
{red: 10, blue: 20, green: 30}