JSFiddle - React, Tailwind, and code Playground

by curtiseinsmann

JavaScript

function getState(zipString) {

  /* Ensure param is a string to prevent unpredictable parsing results */
  if (typeof zipString !== 'string') {
      console.log('Must pass the zipcode as a string.');
      return;
  }

  /* Ensure we have exactly 5 characters to parse */
  if (zipString.length !== 5) {
      console.log('Must pass a 5-digit zipcode.');
      return;
  }

  /* Ensure we don't parse strings starting with 0 as octal values */
  const zipcode = parseInt(zipString, 10);

  let st;
  let state;

  /* Code cases alphabetized by state */
  if (zipcode >= 35000 && zipcode <= 36999) {
      st = 'AL';
      state = 'Alabama';
  } else if (zipcode >= 99500 && zipcode <= 99999) {
      st = 'AK';
      state = 'Alaska';
  } else if (zipcode >= 85000 && zipcode <= 86999) {
      st = 'AZ';
      state = 'Arizona';
  } else if (zipcode >= 71600 && zipcode <= 72999) {
      st = 'AR';
      state = 'Arkansas';
  } else if (zipcode >= 90000 && zipcode <= 96699) {
      st = 'CA';
      state = 'California';
  } else if (zipcode >= 80000 && zipcode <= 81999) {
      st = 'CO';
      state = 'Colorado';
  } else if ((zipcode >= 6000 && zipcode <= 6389) || (zipcode >= 6391 && zipcode <= 6999)) {
      st = 'CT';
      state = 'Connecticut';
  } else if (zipcode >= 19700 && zipcode <= 19999) {
      st = 'DE';
      state = 'Delaware';
  } else if (zipcode >= 32000 && zipcode <= 34999) {
      st = 'FL';
      state = 'Florida';
  } else if ( (zipcode >= 30000 && zipcode <= 31999) || (zipcode >= 39800 && zipcode <= 39999) ) {
      st = 'GA';
      state = 'Georgia';
  } else if (zipcode >= 96700 && zipcode <= 96999) {
      st = 'HI';
      state = 'Hawaii';
  } else if (zipcode >= 83200 && zipcode <= 83999) {
      st = 'ID';
      state = 'Idaho';
  } else if (zipcode >= 60000 && zipcode <= 62999) {
      st = 'IL';
      state = 'Illinois';
  } else if (zipcode >= 46000 && zipcode <= 47999) {
      st = 'IN';
      state = 'Indiana';
  } else if (zipcode >=...