How to verify PAN card?

Question

How to check the validation of edittext for pan card like \"ABCDE1234F\". I am confused how to check the the validation for this. Please help me guys. I will appreciate any kind

Answer 1

For more information visit this repository https://github.com/riyastir/PAN-Validator

const validateAlpha = (val) => {
  return val.match(/^[A-Za-z]+$/) ? true : false;
};
const validateNum = (val) => {
  return val.match(/^\d+$/) ? true : false;
};

const pantype = (val) => {
  switch (val) {
    case "A":
      type = "Association of persons (AOP)";
      code = "A";
      break;
    case "B":
      type = "Body of individuals (BOI)";
      code = "B";
      break;
    case "C":
      type = "Company";
      code = "C";
      break;
    case "F":
      type = "Firm";
      code = "F";
      break;
    case "G":
      type = "Government";
      code = "G";
      break;
    case "H":
      type = "HUF [Hindu joint family|Hindu undivided family]";
      code = "H";
      break;
    case "L":
      type = "Local authority";
      code = "L";
      break;
    case "J":
      type = "";
      code = "J";
      break;
    case "P":
      type = "Personal";
      code = "P";
      break;
    case "T":
      type = "Trust (AOP)";
      code = "T";
      break;

    default:
      type = null;
      code = null;
      return [type, code, false];
  }
  return [type, code, true];
};

const pan = (panNumber) => {
  const firstSet = panNumber.substring(0, 3);
  const valFirst = validateAlpha(firstSet);

  if (valFirst == true) {
    const secondSet = panNumber.substring(3, 4);
    const valSecond = pantype(secondSet);
    if (valSecond[2] == true) {
      const thirdSet = panNumber.substring(5, 9);
      const valThird = validateNum(thirdSet);

      if (valThird == true) {
        const fourthSet = panNumber.substring(9, 10);
        const valFourth = validateAlpha(fourthSet);
        if (valFourth == true) {
          return [valSecond[0], valSecond[1], true];
        } else {
          return [null, null, false];
        }
      } else {
        return [null, null, false];
      }
    } else {
      return [null, null, false];
    }
  } else {
    return [null, null, false];
  }
};
console.log(pan("ABCPA1234D"));