Code understanding. Read through and think out loud: What does this code do? How would you change it? Feel free to use your editor.

client_api.js

export const request = ({ method, url, content }) => {
  if (content && method === 'GET') {
    throw new Error('GET method with content is not supported');
  }

  if (
    !appGlobalsService.get('NODE_ENV') === 'development' &&
    typeof navigator !== 'undefined' &&
    !!navigator &&
    navigator.onLine === false
  ) {
    log.info('Trying to fetch resource, but no internet connection detected');
    return Promise.reject(new Error('offline'));
  }

  let requestUrl;
  const isAbsoluteUrl = /^https?:/.test(url);
  if (isAbsoluteUrl) {
    requestUrl = url;
  } else {
    requestUrl = `${appGlobalsService.get('OTOVOAPI_URL')}${url}`;
  }

  const hasJsonPayload =
    content && typeof content !== 'string' && !(content instanceof FormData);

  const headers = {
    Accept: 'application/json',
    ...(hasJsonPayload ? { 'Content-Type': 'application/json' } : {})
  };

  let requestData = {
    headers,
    method
  };

  if (content) {
    const payload = hasJsonPayload ? JSON.stringify(content) : content;
    requestData.body = payload;
  }

  try {
    return doRequest({
      requestData,
      requestUrl
    });
  } catch (error) {
    log.error(`API: Error requesting ${url}`, error);
    return { json: null, error };
  }
};

coding.ts

const pairs = [
  "A gentleman",
  "Astronomer",
  "Conversation",
  "Dirty room",
  "Dormitory",
  "Elegant man",
  "Funeral",
  "Listen",
  "Moon starer",
  "Real fun",
  "School master",
  "Silent",
  "The classroom",
  "The eyes",
  "They see",
  "Voices rant on",
];


/**
 * An anagram is a play on words created by rearranging the letters of the original word to make a new word or phrase. You can disregard spaces.
 *
 * Task: The above list contains 8 pairs of anagrams. The task is to find all pairs. E.g:
 *
 * Dormitory <-> Dirty room
 * Astronomer <-> Moon starer
 *
 */