js/ts add function to object

how to add a new method to an object

instead of doing:

jsx

const timestwo = (num) => {
  return num * 2
}

const object = {
	timestwo: (num) => {
		return timestwo(num)
	}
}

//object.timestwo(5) => 10

we can just do

jsx

const timestwo = (num) => {
  return num * 2
}

const object = { timestwo }

//object.timestwo(5) => 10

js/ts add function to object ​