<aside> 💡 When the first countdown finishes , start the 2nd countdown from 10 to 0 for the 2nd pose picture

</aside>

Notes

Code

1. The DOM element wherein the countdown will be displayed

<h1 id='timerText'class="text-center my-5"></h1>

1. Global variable assigned to the number 10 for the 1st countdown

let count2 = 10;

function countdown2(){
var timer2 = setInterval(function(){
 if(count2 < 0){
    clearInterval(timer2);
    document.getElementById('timerText').innerHTML = 'Next Pose';
   picture2()
    }
    else{
   document.getElementById('timerText').innerHTML = count2
   console.log(count2);
    count2--
    }
  },1000 )
}

3. countdown2()

• Function countdown2() references the function for the first countdown from 10 to 0 for the 2nd pose picture
• This function is called when we click on the start button here
• First we disable the start <button> because we don't want the countdown to be interrupted once started
  • Use a function assignment syntax to assign the setInterval() method to variable timer2 this is because we will use the clearInterval() method and pass in timer2 which references the setInterval() function as an argument
  • SetInterval():
  1. This method will execute some code at a specified interval. In our case we want to count down from 10 to 0 every second
  2. Syntax: variable = setInterval(function, milliseconds);
  3. The if conditional checks if variable count1 is less than 0. If true, then use the clearInterval() method that takes timer2 as an argument, which references the setInterval() function. We also want to let the user that the countdown is over so we add the string "Next Pose" to the innerHTML property of the DOM element with id of 'timerText'. And lastly since the countdown is over we called function picture2() which will click a picture of the current pose.
  4. If the if conditional evaluates to false i.e. count2 > 0 then insert the value of countdown1 into the DOM and then decrease the value of count2 by -1
  • Do all the above at an interval of 1 second till count2 is = 0. Then clear the interval