async problems from csbin

csbin - async

/* CHALLENGE 1 */

function sayHowdy() {
  console.log('Howdy');
}

function testMe() {
  setTimeout(sayHowdy, 0);
  console.log('Partnah');
}
// After thinking it through, uncomment the following line to check your guess!
// testMe(); // what order should these log out? Howdy or Partnah first?


/* CHALLENGE 2 */

function delayedGreet() {
  // ADD CODE HERE
}
// Uncomment the following line to check your work!
// delayedGreet(); // should log (after 3 seconds): welcome


/* CHALLENGE 3 */

function helloGoodbye() {
  // ADD CODE HERE
}
// Uncomment the following line to check your work!
// helloGoodbye(); // should log: hello // should also log (after 3 seconds): good bye


/* CHALLENGE 4 */

function brokenRecord() {
 let time = 1000
 let i = 0
 while(i < 10){
   setTimeout(()=>{console.log(`hi`)}, time)
   time += 1000
   i++
 }
	setTimeout(()=>{console.log(`done`)}, time)
}

// This actually working but because all iteration are being sent to the queue relaively close to each other, the timer is running consecutively for all instance of callback



// Uncomment the following line to check your work!
//brokenRecord(); // should log (every second): hi again


/* CHALLENGE 5 */

function limitedRepeat() {
  let limit = 0
  let action = setInterval( () => {
    console.log(`hi for now`);
    limit += 1000;
    console.log(limit);
    if (limit == 5000) clearInterval(action);
  }, 1000)
  
}
// Uncomment the following line to check your work!
//limitedRepeat(); // should log (every second, for 5 seconds): hi for now


/* CHALLENGE 6 */

function everyXsecsForYsecs(func, interval, duration) {
	let count
	let action = setInterval( () => {
  	func()
		count += interval
    if (count == duration) clearInterval(action)
	}, interval)
}
// Uncomment the following lines to check your work!
function theEnd() {
  console.log('This is the end!');
}
everyXsecsForYsecs(theEnd, 2, 20); // should invoke theEnd function every 2 seconds, for 20 seconds): This is the end!


/* CHALLENGE 7 */

function delayCounter(target, wait) {

}

// UNCOMMENT THESE TO TEST YOUR WORK!
// const countLogger = delayCounter(3, 1000)
// countLogger();
// After 1 second, log 1
// After 2 seconds, log 2
// After 3 seconds, log 3

/* CHALLENGE 8 */

function promised (val) {
  // ADD CODE HERE
}

// UNCOMMENT THESE TO TEST YOUR WORK!
// const createPromise = promised('wait for it...');
// createPromise.then((val) => console.log(val)); 
// will log "wait for it..." to the console after 2 seconds

/* CHALLENGE 9 */

class SecondClock {
  constructor(cb) {
    // ADD CODE HERE
  }
  // ADD METHODS HERE
}

// UNCOMMENT THESE TO TEST YOUR WORK!
// const clock = new SecondClock((val) => { console.log(val) });
// console.log("Started Clock.");
// clock.start();
// setTimeout(() => {
//     clock.reset();
//     console.log("Stopped Clock after 6 seconds.");
// }, 6000);

/* CHALLENGE 10 */

function debounce(callback, interval) {
  // ADD CODE HERE
}

// UNCOMMENT THESE TO TEST YOUR WORK!
// function giveHi() { return 'hi'; }
// const giveHiSometimes = debounce(giveHi, 3000);
// console.log(giveHiSometimes()); // -> 'hi'
// setTimeout(function() { console.log(giveHiSometimes()); }, 2000); // -> undefined
// setTimeout(function() { console.log(giveHiSometimes()); }, 4000); // -> undefined
// setTimeout(function() { console.log(giveHiSometimes()); }, 8000); // -> 'hi'