How to find index of empty object in array of object

You can make use of findIndex and Object.keys():

const arr = [{a:'b'}, {}];

const emptyIndex = arr.findIndex((obj) => Object.keys(obj).length === 0);

console.log(emptyIndex);

If you search for an empty object, you search for the same object reference of the target object.

You could search for an object without keys instead.

var array = [{ a: 'b' }, {}] ,
    index = array.findIndex(o => !Object.keys(o).length);

console.log(index);

Tags:

Javascript

Arrays

Object

Json

Related