array_utils_rajnandini123/index.js

const arrayUtils = {
  sum: arr => arr.reduce((a, b) => a + b, 0),
  unique: arr => [...new Set(arr)],
  max: arr => Math.max(...arr),
  min: arr => Math.min(...arr),
  average: arr => arr.reduce((a, b) => a + b, 0) / arr.length,
  even: arr => arr.filter(n => n % 2 === 0),
  odd: arr => arr.filter(n => n % 2 !== 0),
  mapPlus: (arr, x) => arr.map(n => n + x),
  square: arr => arr.map(n => n * n),
  sortAsc: arr => [...arr].sort((a, b) => a - b)
};

module.exports = arrayUtils;