function _helper (size, initializer) {
  const arr = new Array(size)
  for (let i = 0; i < size; i++) {
    arr[i] = initializer()
  }
  return arr
}
/**
 * create a new array of size and
 * all element initialized calling initializer
 * @param { int } size of the array
 * @param { callback } initializer for the elements
 * @returns
 */
create a new array of size and
all element initialized calling initializer
@param { int } size of the array
@param { callback } initializer for the elements
@returns
create a new array of size and all element initialized calling initializer @param { int } size of the array @param { callback } initializer for the elements @returns
function _helper (size, initializer) {
  const arr = new Array(size)
  for (let i = 0; i < size; i++) {
    arr[i] = initializer()
  }
  return arr
}
function _helper ( size , initializer ) { const arr = new Array ( size ) for ( let i = 0 ; i < size ; i ++ ) { arr [ i ] = initializer ( ) } return arr }
create a new array of size and
 all element initialized calling initializer
 @param { int } size of the array
 @param { callback } initializer for the elements
 @returns
create a new array of size and all element initialized calling initializer @param { int } size of the array @param { callback } initializer for the elements @returns