How to avoid no-param-reassign when setting a property on a DOM object

Question

I have a method which\'s main purpose is to set a property on a DOM object

function (el) {
  el.expando = {};
}

I use AirBnB\'s code style

Answer 1

If you want to change any value inside an object array, you can use

array.forEach(a => ({ ...a, expando: {} }))