Drop the elements of an array (first argument), starting from the front, until the predicate (second argument) returns true. The second argument, func, is a function you'll use to test the first elements of the array to decide if you should drop it or not. Return the rest of the array, otherwise return an empty array.

drop-it.js

function dropElements(arr, func) {
  // Drop them elements.
  //shift() removes the element if it returns false
  //so loop over the array, test against the function
  //if it returns false remove the element, otherwise
  //return the array.
  while(arr.length > 0){
    var check = func(arr[0]);
    if(!check){
      arr.shift();
    }
    else{
      return arr;
    }
  }
  return arr; //returns the array if the loop completes
}

dropElements([1, 2, 3], function(n) {return n < 3; });