Small JS exercises

small-js-exercises.js

/**
 * Small JS exercices
 * Consider all exercises independant from each other and running in their own scope
 * 
 */

/**
 * What is the output of this piece of code?
 * 
 */

console.log(0);
setTimeout(() => { console.log(1) }, 2000);
setTimeout(() => { console.log(2) }, 0);
console.log(3);


/**
 * What is the output of this piece of code?
 * 
 */

console.log(a); 

a = 1;

console.log(a);

function a() {
  console.log(2)
}

console.log(a)


/**
 * Implement a mini-event library
 *
 */

minievent.on('test', () => {
  console.log('That is an event');
});

minievent.emmit('test');


function minievent() {
  // ...
  
  this.on = () => {
    // ...
  }

  this.emit = () => {
    // ...
  }
}