const empty = obj => Object.keys(obj).length === 0;
const extend = (listToExtend, list) =>
// eslint-disable-next-line prefer-spread
listToExtend.push.apply(listToExtend, list);
const translate = (string, chrMap) => {
  const tempArray = string.split('');
  return tempArray.map(char => chrMap[char] || char).join('');
};
// sort on i primary, j secondary
const sorted = matches => matches.sort((m1, m2) => m1.i - m2.i || m1.j - m2.j);
const buildRankedDictionary = orderedList => {
  const result = {};
  let counter = 1; // rank starts at 1, not 0
  orderedList.forEach(word => {
    result[word] = counter;
    counter += 1;
  });
  return result;
};

export { buildRankedDictionary, empty, extend, sorted, translate };
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