How can I delete element then return him in function?

Question

I have function, that goes to return and delete last element from array, but if I delete this element, function could return null value

function poll(Queue storage _queue) public returns(Job job) {
    require(data.length==0);
    require(_queue.length - 1 < cursorPosition);
    _queue.cursorPosition++;
    // there should be element deleting
    return (_queue.jobArray[cursorPosition - 1]);
}

Answer 1

There is no cost-effective way to do this, as the delete type behave like an assignation to the default value, thus returning a zero-like value.

As @Med Mansour told you above, store the value in a variable and then return said variable.