Used a function as a input to check for Boolean. Used splice to remove first index in array.

Drop it

function dropElements(arr, func) {
  // Drop them elements.

  for (var i = 0; i <= arr.length; i++) {
    // Check console for current value
    console.log("function is " + func(arr[0]));
    console.log("value is " + arr[0])

    // remove value from arr if function returns false
    if(func(arr[0]) === false) {
      console.log("removed " + arr[0])
      arr.splice(0,1)
    } 

    // return arr if function returns true
    if(func(arr[0]) === true) {
      return arr;
    }
  }

  // else empty array
  return [];
}

dropElements([1, 2, 3, 7, 4], function(n) {return n > 3;})