Javascript function

Question

I'm trying to learn javascript here and I have an assignment, I have to: ''Write the makeStickers function that accepts the detailsCount integer and the robotPart string. The function returns an array of strings in the following format: {{robotPart}} detail #{{n}} (for example, Hand detail #1).

For example:

makeStickers(3, 'Body'); // ['Body detail #1', 'Body detail #2', 'Body detail #3'] makeStickers(4, 'Head'); // ['Head detail #1', 'Head detail #2', 'Head detail #3', 'Head detail #4'] makeStickers(0, 'Foot'); // []''

function makeStickers(detailsCount, robotPart) {
  // write code here
}

I wrote the following function, but for some reason it always gives me just robot part #2, without any other iteration. Please help.

function makeStickers(detailsCount, robotPart) {

  let arr = [];

  for(let i = 1; i <= detailsCount; i++){
    arr = [`${robotPart} detail #${arr.push(i)}`]
  };
  return arr
};