how may add a new properties in array objets

Hi, How may add a new properties in array objets

Well what I want to do is I can add a new property so that I can read the template from the MDBTABLE

i have the next example

const instutions = [
  {
    name: 'Malasia',
    direction: 'Asia'
  },
  {
    name: 'New Francia',
    direction: 'paris'
  }
];

well now, i would like add new properties and result It would be something like this

const instutions = [
  {
    name: 'Malasia',
    direction: 'Asia',
    buttonAdd: 'Hello world'
  },
  {
    name: 'New Francia',
    direction: 'paris',
    buttonAdd: 'Hello world'
  }
];

Well add new properties, object array, you could do something like this

You can add a property in many ways. The higher-order function map is one of them. See the example.

const institutions = [{name: 'Malasia',direction: 'Asia'},{name: 'New Francia',direction: 'paris'}];
    
institutions.map(el => el.new_property = 'Hello')
    
console.log(institutions)