Quiz functions to be added to animation quizzes

quizFunctions.js

/**
 * Function picks random number of specified elements in an array and will return
 * random (n) numbers from the array length
 * 
 * @param {Array} [arr=[...Array(100).fill().map((el,i) => i+1)]] - array of elements
 * @param {Number} [count=7] - count of elements to be picked
 */
const pickRandomArrayElements = (arr, count = 7) => {
  let _arr = [ ...arr ];
  return [ ...Array(count) ].map(() => _arr.splice(Math.floor(Math.random() * _arr.length), 1)[0]);
};

// const pickRandomElement = (array, )