A good remove duplicates function in nodejs that uses good readability principles and performance concepts like hashmaps

removeDuplicateStrings_nodejs_performance_readability.js

const removeDuplicateStrings = (array) => {
  const uniqueValues = [];
  const seenMap = {};

  for (const item of array) {
    if (seenMap[item]) continue;
    seenMap[item] = true;
    uniqueValues.push(item);
  }

  return uniqueValues;
};