Checks if two arrays are equal

arraysEqual.js

/**
 * @param a First array
 * @param b Second array
 * @returns boolean; true if a and b are equal, false otherwise
 */
function arraysEqual (a, b) {
  if (a.length !== b.length) {
    return false
  }

  for (let i = 0; i < a.length; ++i) {
    if (a[i] !== b[i]) {
      return false
    }
  }

  return true
}