bin2dec.js

import { ERRORTYPES as error } from "./error";

export default function bin2dec(value) {
  var valueAsString;

  if (typeof value === "string") {
    valueAsString = value;
  } else if (typeof value !== "undefined") {
    valueAsString = value.toString();
  } else {
    return error.NA;
  }

  if (valueAsString.length > 10) return error.NUM;

  if (valueAsString.length === 10 && valueAsString[0] === "1") {
    return parseInt(valueAsString.substring(1), 2) - 512;
  }

  return parseInt(valueAsString, 2);
}