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HTML

              
                <h3>Callback with ajax</h3>
<p id="ajaxCallback"></p>

<h3>Callback with timer</h3>

<p id="timerCallback"></p>

<h3>Callback with custom trigger</h3>
<p id="triggerCallback"></p>



              
            
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CSS

              
                

              
            
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JS

              
                //Callback with ajax
var ajaxCallback = function(value) {
  var result = JSON.stringify(value.data);
  $("#ajaxCallback").text(`Value for API: ${result}`);
};
$(function(){
  $.ajax("https://reqres.in/api/users/2").done(ajaxCallback);

})

//Callback with timer
var timerCallback = function() {
  var currentTime = new Date().toLocaleTimeString();
  $("#timerCallback").text(`Value for API: ${currentTime}`);
};
setInterval(timerCallback, 1000);


//Callback with custom trigger
var triggerCallback = function() {
  $("#triggerCallback").text(`Happy new year`);
};

function countDown(callback) {
  var countDown = 10;
  var counDownInterval=setInterval(function() {
    $("#triggerCallback").text(`Count down: ${--countDown}`);

    if (countDown === 0) {
      callback();
      clearInterval(counDownInterval)
    }
  }, 1000);
}
countDown(triggerCallback);


              
            
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999px

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