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JavaScript

Benjamin Bonenfant
Benjamin Bonenfant
4,724 Points
Posted by Benjamin Bonenfant
Benjamin Bonenfant
4,724 Points

What am I missing with this code? Trying to return an array with the last one popped off.

function removeFromBack(arr) { return arr.pop(); } var result = removeFromBack(1, 2, 3); console.log(result);

I know I've missed a step and/or not understanding fully, and grateful for your help.

2 Answers

Steven Parker
Steven Parker
231,172 Points
Steven Parker
Steven Parker
231,172 Points

To create an array literal, you must enclose the values in square brackets:

var result = removeFromBack( [1, 2, 3] );
//                           ^       ^

Also, the function as shown doesn't return the modified array, what it returns is the item that was popped off.

Benjamin Bonenfant
Benjamin Bonenfant
4,724 Points
Benjamin Bonenfant
Benjamin Bonenfant
4,724 Points

Thank you, Steven, makes sense. How would I return the array and not the popped item? I think I misunderstood the method as well.

Steven Parker
Steven Parker
231,172 Points
Steven Parker
Steven Parker
231,172 Points 
function removeFromBack(arr) {
  arr.pop();   // pop value off first
  return arr;  // then return the array
}