Simple slice generator

slice.js

function* slice(src, start, finish = Number.MAX_SAFE_INTEGER) {
	let index = 0;
  for (const value of src) {
    if (index >= finish) {
      break;
    }
    if (index >= start) {
      yield value;
    }
    ++index;
  }
}

Why break instead of return?

You've got a \t instead of two spaces on line 2.