To shuffle an array of integers into random order, a pseudo-code is developed as follows:

elementsRemaining = size of array while elementsRemaining > 1 o Randomly choose index rndNdx in range 0 elementsRemaining-1 o Swap element at rndNdx with element at elementsRemaining-1 o Decrement elementsRemaining

Based on the pseudo-code, implement the shuffle() function below by filling the missing statements:

function shuffle(arr) {

// Some statements are missing here

}

Write ONLY the missing statements do NOT rewrite the entire code given above. You may need to create some local variables in side the function body in order to make the shuffling work correctly. Mind the programming style (naming convention, indentation, spacing, etc.) in your code.