Hi, I need to fix JAVASCRIPT Functions to solve this problem, Please help me with this.

Please consider that, I need Javascript code.

I have two files:

1 - solutions.js

/******************************************************************************* * Problem 4: convert a valid Canadian Postal Code to a Canadian Province * * The first letter of a Postal Code tells us which province the Postal Code is * from. Here's the list of Provinces/Territories, their 2-letter short form, * and the first letter(s) of the Postal Code that matches it: * * Province Name Short Form First Letter of Postal Code * ----------------------------------------------------------------------------- * Ontario ON K, L, M, N, P * Quebec QC G, H, J * Nova Scotia NS B * New Brunswick NB E * Manitoba MB R * British Columbia BC V * Prince Edward Island PE C * Saskatchewan SK S * Alberta AB T * Newfoundland and Labrador NL A * Nunavut, Northwest Territories NT X * Yukon YT Y * * The toProvince() function converts a valid postal code to a province name. Use * your fixPostalCode() function from the previous problem to format and validate * the `postalCode` argument first. If it is invalid, return `null`. HINT: use try/catch * to deal with fixPostalCode() throwing an error, see: * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/try...catch * * If the `useShortForm` argument is `true`, the province's short-form is * returned instead of the full name. For example: * * toProvince('M5W1E6') returns 'Ontario' * toProvince('M5W 1E6') returns 'Ontario' * toProvince('M5W 1E6', true) returns 'ON' * toProvince('M5W') returns null * * @param {string} postalCode - a postal code to be validated and used * @param {boolean|undefined} useShortForm - whether to return the full or short name * @returns {string} - a province name or short form ******************************************************************************/ function toProvince(postalCode, useShortForm) { // Replace this comment with your code... } 

2- problem-04.test.js

const { toProvince } = require('./solutions'); /** * Ontario ON K, L, M, N, P * Quebec QC G, H, J * Nova Scotia NS B * New Brunswick NB E * Manitoba MB R * British Columbia BC V * Prince Edward Island PE C * Saskatchewan SK S * Alberta AB T * Newfoundland and Labrador NL A * Nunavut, Northwest Territories NT X * Yukon YT Y */ describe('Problem 4 - toProvince() function', function () { test('Invalid postal codes return null', () => { expect(toProvince('INVALID')).toEqual(null); expect(toProvince('ZZZZZZ')).toEqual(null); expect(toProvince('000000')).toEqual(null); expect(toProvince('')).toEqual(null); }); test('Valid postal codes without a space work', () => { expect(toProvince('K6A1A5')).toEqual('Ontario'); }); test('Valid postal codes with lower-case letters work', () => { expect(toProvince('k6a1a5')).toEqual('Ontario'); }); test('Ontario', () => { // K expect(toProvince('K6A 1A5')).toEqual('Ontario'); expect(toProvince('K6A 1A5', true)).toEqual('ON'); // L expect(toProvince('L1A 5N3')).toEqual('Ontario'); expect(toProvince('L1A 5N3', true)).toEqual('ON'); // M expect(toProvince('M5W 1P5')).toEqual('Ontario'); expect(toProvince('M5W 1P5', true)).toEqual('ON'); // N expect(toProvince('N0B 1K0')).toEqual('Ontario'); expect(toProvince('N0B 1K0', true)).toEqual('ON'); // P expect(toProvince('P3A 8M6')).toEqual('Ontario'); expect(toProvince('P3A 8M6', true)).toEqual('ON'); }); test('Quebec', () => { // G expect(toProvince('G3A 7G2')).toEqual('Quebec'); expect(toProvince('G3A 7G2', true)).toEqual('QC'); // H expect(toProvince('H9H 4Y1')).toEqual('Quebec'); expect(toProvince('H9H 4Y1', true)).toEqual('QC'); // J expect(toProvince('J7P 2V3')).toEqual('Quebec'); expect(toProvince('J7P 2V3', true)).toEqual('QC'); }); test('Nova Scotia', () => { expect(toProvince('B6L 7G2')).toEqual('Nova Scotia'); expect(toProvince('B6L 7G2', true)).toEqual('NS'); }); test('New Brunswick', () => { expect(toProvince('E4H 6K1')).toEqual('New Brunswick'); expect(toProvince('E4H 6K1', true)).toEqual('NB'); }); test('Manitoba', () => { expect(toProvince('R8N 9E1')).toEqual('Manitoba'); expect(toProvince('R8N 9E1', true)).toEqual('MB'); }); test('British Columbia', () => { expect(toProvince('V1Y 5V4')).toEqual('British Columbia'); expect(toProvince('V1Y 4V4', true)).toEqual('BC'); }); test('Prince Edward Island', () => { expect(toProvince('C0A 3H0')).toEqual('Prince Edward Island'); expect(toProvince('C0A 3H0', true)).toEqual('PE'); }); test('Saskatchewan', () => { expect(toProvince('S0C 1W0')).toEqual('Saskatchewan'); expect(toProvince('S0C 1W0', true)).toEqual('SK'); }); test('Alberta', () => { expect(toProvince('T0G 2G0')).toEqual('Alberta'); expect(toProvince('T0G 2G0', true)).toEqual('AB'); }); test('Newfoundland and Labrador', () => { expect(toProvince('A0K 1B0')).toEqual('Newfoundland and Labrador'); expect(toProvince('A0K 1B0', true)).toEqual('NL'); }); test('Nunavut, Northwest Territories', () => { expect(toProvince('X0G 0A0')).toEqual('Northwest Territories and Nunavut'); expect(toProvince('X0G 0A0', true)).toEqual('NT'); }); test('Yukon', () => { expect(toProvince('Y0B 1T0')).toEqual('Yukon'); expect(toProvince('Y0B 1T0', true)).toEqual('YT'); }); }); 

please write the correct functions into

function toProvince(postalCode, useShortForm) { // Replace this comment with your code... }

that provided in the first code

Thank you so much