AJAX - Implementing a delay in displaying AJAX results

Question

AJAX - Implementing a delay in displaying AJAX results

My search function uses AJAX to retrieve data from the web-server, and I am trying to implement a fade-in animation for each search result. I want the results to load and fade in one by one with a slight delay between them.

Currently, it seems like all the results are displaying and animating at the same time, but this might be due to my computer's speed.

Here is the code snippet:

JavaScript

$.ajax({
  type: 'GET',
  url: '/PersonSearch',
  data: {
    'search_value': search
  },
  dataType: 'json',
})
.done(function(json) {
  $('#main').html('');
  $.each(json, function(key, value) {
    var search = $('<div />', {
       id: 'search' + key,
       'class': 'search-item off',
       html: 
        '<div class="basic-info">' +
          '<span class="first-name">' + value.First_name + '</span>' +
          '<span> </span>' +
          '<span class="last-name">' + value.Last_name + '</span>' +
        '</div>' +
        '<div class="dropdown">' +
          '<span class="phone-number">' + 'PHONE: ' + value.Phone_number + '</span>' +
          '<span class="email">' + 'EMAIL: ' + value.Email_address + '</span>' +
          '<div class="box edit"><img src="../media/gear.svg"/></div>' +
        '</div>'
    }).appendTo('#main');
    setTimeout(function() {
      search.removeClass('off');
    });
  });
});

CSS

.search-item.off{
  opacity: 0;
  top: 8px;
}
.search-item{
  overflow: hidden;
  position: relative;
  opacity: 1px;
  top: 0;
  transition: .75s;
}

HTML

<div id="main">

</div>

The code adds search results with the class search-item off, and after loading, removes the off class to trigger the fade-in effect using CSS transitions.

I attempted to use setTimeout() on .appendTo('#main') without success.

I am looking to introduce a delay in posting each search result within the #main element to ensure a delayed execution of the fade-in animation.

javascript jquery html css ajax

Answer 1

Answer №1

Your concept seems promising, but it would be beneficial to introduce a slight delay in your setTimeout function. Gradually increasing the delay for each new result is recommended. A longer initial delay (e.g., 1000 or 1 second) can serve as a starting point before fine-tuning with shorter intervals.

setTimeout(function() { ... }, 1000 * index);

Below is an example snippet demonstrating the application of setTimeout to stagger calls to append:

$(function() {
  var $container = $('#container');
  $.each(['foo', 'bar', 'qux'], function(i, value) {
    setTimeout(function() {
      $container.append('<div>' + value + '</div>');
    }, 1000 * i);
  });
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<div id="container">
</div>

Answer 2

Your concept seems promising, but it would be beneficial to introduce a slight delay in your setTimeout function. Gradually increasing the delay for each new result is recommended. A longer initial delay (e.g., 1000 or 1 second) can serve as a starting point before fine-tuning with shorter intervals.

setTimeout(function() { ... }, 1000 * index);

Below is an example snippet demonstrating the application of setTimeout to stagger calls to append:

$(function() {
  var $container = $('#container');
  $.each(['foo', 'bar', 'qux'], function(i, value) {
    setTimeout(function() {
      $container.append('<div>' + value + '</div>');
    }, 1000 * i);
  });
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<div id="container">
</div>

Answer 3

Answer №2

Why not give it a try?

setTimeout(function() { ... }, 0);

This method ensures that your content is loaded completely before proceeding.

Answer 4

Why not give it a try?

setTimeout(function() { ... }, 0);

This method ensures that your content is loaded completely before proceeding.

Answer 5

Answer №3

The reason for this phenomenon is that the setTimeout function operates asynchronously, causing the timeouts to start at different intervals such as 5ms, 10ms, 13ms, etc. and execute at similar times. To address this issue, you can declare a variable named timeout before making the ajax call, increment the timeout value for each iteration within the each loop, and assign this updated timeout value to the respective setTimeout. Below is an illustration of this concept (with excessive timeout values):

var timeout = 0;
$('div').each(function() {
  var $this = $(this);
  timeout += 1000;
  setTimeout(function() {
    $this.hide('slow');
  }, timeout);
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div>1</div>
<div>2</div>
<div>3</div>
<div>4</div>
<div>5</div>

Answer 6

The reason for this phenomenon is that the setTimeout function operates asynchronously, causing the timeouts to start at different intervals such as 5ms, 10ms, 13ms, etc. and execute at similar times. To address this issue, you can declare a variable named timeout before making the ajax call, increment the timeout value for each iteration within the each loop, and assign this updated timeout value to the respective setTimeout. Below is an illustration of this concept (with excessive timeout values):

var timeout = 0;
$('div').each(function() {
  var $this = $(this);
  timeout += 1000;
  setTimeout(function() {
    $this.hide('slow');
  }, timeout);
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div>1</div>
<div>2</div>
<div>3</div>
<div>4</div>
<div>5</div>

Answer 7

Answer №4

Consider utilizing the timeout feature within the callback function of the $.each() method.

$.each(json, setTimeout(function(key, value) {...}, 1000))

Answer 8

Consider utilizing the timeout feature within the callback function of the $.each() method.

$.each(json, setTimeout(function(key, value) {...}, 1000))

AJAX - Implementing a delay in displaying AJAX results

Answer №1

Answer №2

Answer №3

Answer №4

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