A simple JavaScript function to convert an hexadecimal value into its integer base-10 equivalent.

hex2int

/**
 * Convert an hexadecimal value in a integer base-10.
 * @param hex An hexadecimal value to convert.
 * @return An integer base-10 equivalent to the given hexadecimal value.
 */
function hex2int(hex) {
  return parseInt(hex, 16);
}