use javascript please

Write a function called `dynamicAdder(num)`. The dynamicAdder function will

return a new function that will allow us to create new separate custom

adding functions.

Look below to see how this function is invoked:

const addTwo = dynamicAdder(2); // returns a function

console.log(addTwo(5)); // 7

const addTen = dynamicAdder(10); // returns a function

console.log(addTen(5)); // 15