functions/functions.js

// functions

/**
 * 1. Given a two-dimensional array of integers, return the flattened version of the arrray with all the integers sorted (ascending) order.
 * 
 * Example:
 * Geven [[3,2,1],[4,5,6],[],[9,7,8]], your function should return [1,2,3,4,5,6,7,8,9]
 * 
 * Hint you can use Array.prototype.reduce and Array.prototype.sort for this
 * Try to solve this task with arrow functions
 */

 /**
  * 2. You will be given an array of objects representing developers.
  * Your task is to return an array with objects where each object has a property greeting
  * with the following string value:
  * 
  * Hi <first name>, what do you like the most about <language>?
  * 
  * 
  * 
  * const devs = [
  *   {firstName: 'Peter', language: 'JavaScript', greeting: 'Hi Peter, whatdo you like the most about JavaScript'},
  *   {firstName: 'Paul', language: 'JavaScript', greeting: 'Hi Paul, whatdo you like the most about TypeScript'},
  *   {firstName: 'Mary', language: 'JavaScript', greeting: 'Hi Mary, whatdo you like the most about WebAssembly'},
  * ]
  */

const devs = [
  {firstName: 'Peter', language: 'JavaScript'},
  {firstName: 'Paul', language: 'TypeScript'},
  {firstName: 'Mary', language: 'WebAssembly'},
];

greet(devs); 
/*returns [
  *   {firstName: 'Peter', language: 'JavaScript', greeting: 'Hi Peter, whatdo you like the most about JavaScript'},
  *   {firstName: 'Paul', language: 'JavaScript', greeting: 'Hi Paul, whatdo you like the most about TypeScript'‚ },
  *   {firstName: 'Mary', language: 'JavaScript', greeting: 'Hi Mary, whatdo you like the most about WebAssembly'},
  * ]
  */

  /**
   * 3. Write a function that accepts an array and a callback function. The function returns two arrays. The first array
   * contains all values the callback function returns the value true. The second array contains all the values the callback
   * function returns false.
   */

function isEven(x) {return x % 2 === 0}
  
split([1,2,3,4], isEven); // [[2,4],[1,3]] 