Not able to to display the third slideshow on my html-CodePudding

I basically copied code of multiple slideshows from w3schools https://www.w3schools.com/howto/tryit.asp?filename=tryhow_js_slideshow_multiple

The first two slideshows are working just fine but, the third slideshow I tried adding afterwards isn't displaying at all and neither the images seems to be loading on the inspection page.

I wanted images to load lazily as well

Please help me with this.

Any help is appreciated. Thanks in advance.

<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
* {box-sizing: border-box}
.mySlides1, .mySlides2 {display: none}
img {vertical-align: middle;}

/* Slideshow container */
.slideshow-container {
  max-width: 1000px;
  position: relative;
  margin: auto;
}

/* Next & previous buttons */
.prev, .next {
  cursor: pointer;
  position: absolute;
  top: 50%;
  width: auto;
  padding: 16px;
  margin-top: -22px;
  color: white;
  font-weight: bold;
  font-size: 18px;
  transition: 0.6s ease;
  border-radius: 0 3px 3px 0;
  user-select: none;
}

/* Position the "next button" to the right */
.next {
  right: 0;
  border-radius: 3px 0 0 3px;
}

/* On hover, add a grey background color */
.prev:hover, .next:hover {
  background-color: #f1f1f1;
  color: black;
}
</style>
</head>
<body>

<h2 style="text-align:center">Multiple Slideshows</h2>

<p>Slideshow 1:</p>
<div class="slideshow-container">
  <div class="mySlides1">
    <img loading="lazy" src="img_nature_wide.jpg" style="width:100%">
  </div>

  <div class="mySlides1">
    <img loading="lazy" src="img_snow_wide.jpg" style="width:100%">
  </div>

  <div class="mySlides1">
    <img loading="lazy" src="img_mountains_wide.jpg" style="width:100%">
  </div>

  <a class="prev" onclick="plusSlides(-1, 0)">&#10094;</a>
  <a class="next" onclick="plusSlides(1, 0)">&#10095;</a>
</div>

<p>Slideshow 2:</p>
<div class="slideshow-container">
  <div class="mySlides2">
    <img loading="lazy" src="img_band_chicago.jpg" style="width:100%">
  </div>

  <div class="mySlides2">
    <img loading="lazy" src="img_band_la.jpg" style="width:100%">
  </div>

  <div class="mySlides2">
    <img loading="lazy" src="img_band_ny.jpg" style="width:100%">
  </div>

  <a class="prev" onclick="plusSlides(-1, 1)">&#10094;</a>
  <a class="next" onclick="plusSlides(1, 1)">&#10095;</a>
</div>

<div class="slideshow-container">
  <div class="mySlides3">
    <img loading="lazy" src="https://m.media-amazon.com/images/I/313CFbI-YjL._SX512_.jpg" style="width:100%">
  </div>

  <div class="mySlides3">
    <img loading="lazy" src="https://m.media-amazon.com/images/I/41zOmaUKehL._SX512_.jpg" style="width:100%">
  </div>

  <div class="mySlides3">
    <img loading="lazy" src="https://m.media-amazon.com/images/I/41ePfTRprsL._SX512_.jpg" style="width:100%">
  </div>

  <div class="mySlides3">
    <img loading="lazy" src="https://m.media-amazon.com/images/I/31bjKqlul6L._SX512_.jpg" style="width:100%">
  </div>

  <div class="mySlides3">
    <img loading="lazy" src="https://m.media-amazon.com/images/I/311m3klP3oL._SX512_.jpg" style="width:100%">
  </div>

  <div class="mySlides3">
    <img loading="lazy" src="https://m.media-amazon.com/images/I/315hICqUx0L._SX512_.jpg" style="width:100%">
  </div>

  <a class="prev" onclick="plusSlides(-1, 2)">&#10094;</a>
  <a class="next" onclick="plusSlides(1, 2)">&#10095;</a>
</div>

<script>
var slideIndex = [1,1];
var slideId = ["mySlides1", "mySlides2", "mySlides3"]
showSlides(1, 0);
showSlides(1, 1);
showSlides(1, 2);

function plusSlides(n, no) {
  showSlides(slideIndex[no]  = n, no);
}

function showSlides(n, no) {
  var i;
  var x = document.getElementsByClassName(slideId[no]);
  if (n > x.length) {slideIndex[no] = 1}    
  if (n < 1) {slideIndex[no] = x.length}
  for (i = 0; i < x.length; i  ) {
     x[i].style.display = "none";  
  }
  x[slideIndex[no]-1].style.display = "block";  
}
</script>

</body>
</html>

CodePudding user response：

Your third slideshow is not functioning because when plusSlides is called on the third slideshow, it references index 2 of the array slideIndex. However, you've defined the array only up to index 1: var slideIndex = [1, 1];. Changing this line to var slideIndex = [1, 1, 1]; fixes your third slideshow.

CodePudding user response：

Your problem is that the variable slideIndex only have two positions:

var slideIndex = [1,1];

For solve the problem, add one position more to the array:

var slideIndex = [1,1,1];

Greetings.