fetch 4clojure problem

fetch_4clojure.js

const FormData  = require('form-data');
const fetch     = require('node-fetch');
const cheerio   = require('cheerio');

const problem = problem => new Promise(async (resolve, reject) => {
    try {
        const result        = await fetch(`http://www.4clojure.com/problem/${problem}`);
        const html          = await result.text();
        const $             = cheerio.load(html);
        const number        = $('#prob-number').text();
        const title         = $('#prob-title').text();
        const difficult     = $('#tags>tr:nth-child(1)>td').text();
        const topic         = $('#tags>tr:nth-child(2)>td').text();
        const description   = $('#prob-desc').text();
        const testcases     = $('.testcases tr').map((_, el) => $(el).find('pre').text()).get();

        resolve({number, title, difficult, topic, description, testcases});
    } catch (ex) {
        console.error(ex);
        resolve({});
    }
});
const check = (problem, code) => {
    const form = new FormData();
    form.append('id', problem);
    form.append('code', code);
    return fetch(`http://www.4clojure.com/rest/problem/${problem}`, form);
}
const print = ({number='#0', title='fail to fetch', difficult='', topic='', description='', testcases=''}) => `; ${number} ${title}
;
; ${difficult}
; ${topic}
;
; ${description.replace(/\n/gm, '\n; ')}
;
; ${testcases.join('\n; ')}`;

const printNo =  async num => console.log(print(await problem(num)));

exports.check = check;
exports.print = print;
exports.printNo = printNo;

const no = process.argv[2];
no && printNo(no);

package.json

{
  "name": "fa3ff16b6b9596a1db2ab00dc906af63",
  "version": "1.0.0",
  "main": "index.js",
  "repository": "https://gist.github.com/fa3ff16b6b9596a1db2ab00dc906af63.git",
  "author": "bglee <[email protected]>",
  "license": "MIT",
  "dependencies": {
    "cheerio": "^0.22.0",
    "form-data": "^2.1.2",
    "node-fetch": "^1.6.3"
  }
}